African Journal of
Food Science

  • Abbreviation: Afr. J. Food Sci.
  • Language: English
  • ISSN: 1996-0794
  • DOI: 10.5897/AJFS
  • Start Year: 2007
  • Published Articles: 921

AJFS Articles

Optimization of antioxidant activity of aqueous and alcoholic extracts of cashew apple bagasse by mean of experimental design

June 2022

Cashew apple bagasse (CAB) constitutes waste in cashew apple conversion in juice industries. This study focused on modelling an optimal condition of antioxidant activity of CAB, in view of valuing it. The response surface methodology through a Box-Behnken design was used to evaluate the effects of three factors influencing antioxidant component extraction. The factors are ethanol proportion of solvent (X1),...

Author(s): GNAGNE Adou Akpa Guy Blanchard, SORO Doudjo, GNOUMOU Kablan Jean Ives, YAO N’guessan Jean Claude and KOFFI Kouadio Ernest

Knowledge, practices and intention to consume omega 3 and omega 6 fatty acids among pregnant and breastfeeding women in Morogoro Municipality, Tanzania

June 2022

Omega 3 and omega 6 fatty acids are beneficial throughout the human life cycle. With regard to early child development, maternal fatty acid status influence cognitive and psychomotor development of the unborn child. Regardless of their importance in early childhood development they still receive less attention when compared to other nutrients. This paper aimed to assess knowledge, practices and intention to consume...

Author(s): Tesha A. P., Mwanri A. W. and Nyaruhucha C. N.

Nutritional and physicochemical characterization of two products (jams and syrup) made from Antananarivo raketa fruits (Opuntia ficus-indica)

May 2022

The fruits of the prickly pear (raketa), like most fruits, are mainly made up of water, which limits their storage. The transformation of the fruits into jam or syrup allowed a longer preservation. As part of the valorization and conservation of food products in Madagascar, two products (jam and syrup) have been developed from raketa fruits. The present study focused on the nutritional characterization of raketa fruits...

Author(s): RAZAFINDRATOVO Valerie Lalao ANDRIAMANAMISATA, RANIVOARIMALALA Mirana Ramarojaona and TELESPHORE Antonio Fidinirina 

Isolation and characterization of fungal strains from the seeds of Bambara groundnut (Vigna subterranea (L.) Verdcourt) produced in Burkina Faso

May 2022

Bambara groundnut is the main food legume after cowpea, especially in rural areas in Burkina Faso. Due to inappropriate production and storage conditions, the seeds are susceptible to contamination by several fungi. Therefore, the present study was conducted to isolate and identify the postharvest fungi associated with Bambara groundnut seeds produced in Burkina Faso. To do this, a total of 99 seed samples were...

Author(s): OUILI Amidou S., MAIGA Ynoussa, ZIDA Elisabeth Pawindé, OUOBA Adjima, NANDKANGRE Hervé, COMPAORE Cheik Omar Tidiane, NIKIEMA Mahamadi, OUEDRAOGO Mahama and OUATTARA Aboubakar Sidiki

Nutrient composition of selected seasonal food delicacies in Malawi

April 2022

Five locally available seasonal delicacies in Malawi were analysed for their nutrient content. The five delicacies included three insect types, one bird and a plant tuber. The proximate analysis using standard methods of analysis showed that Nomadacris septemdasciata (insect) has the highest protein content (69.78±2.0%) followed very closely by Passer difusus (bird) (67.59±1.2%). The protein content of the...

Author(s): Mac Donald F. Jose, Lesten Eliez C. Chatepa, Felix D. Kumwenda and Peter P. Mumba

Food safety practices of cooked food hawkers in Tharaka Nithi County, Kenya

April 2022

Hawking of cooked foods is an important economic activity, especially for low-income earners. However, the trade raises public health concerns particularly due to the likely breaches of food safety standards. Thus, this study investigated the food safety practices of hawkers of cooked foods in Tharaka Nithi County. A cross-sectional study design was used to collect data from 151 respondents using a questionnaire. The...

Author(s): Cornellius Musembi Muendo, Gideon Kikuvi and Susan Mambo

Physicochemical and consumer acceptability of different particle-sized cassava strips

March 2022

This study was carried out to study the physicochemical and sensory characteristics of Abacha with different particle sizes. Dried cassava strips (Abacha) were produced in variable length, 2, 2.5 and 5 mm with the average length of 5 cm market size used as control. The proximate, physicochemical, functional and sensory properties were analyzed for various Abacha strips. The proximate composition of the Abacha chips...

Author(s): Chioma Illoh, Helen Obioma Agu, Chioke Amaefuna Okolo and Victoria Adaora Jideani

Effect of chitosan coatings on quality and shelf-life of chicken and quail eggs

March 2022

In this study, chitosan-coatings were prepared with acetic, lactic, propionic, gallic and caffeic acids and used for coating chicken and quail eggs to understand their effect on the quality and shelf-life of chicken and quail eggs. Shelf-life study of (weight loss, Haugh unit, yolk index, albumen pH, mineral levels and shell breaking strength) the coating formulations were investigated for 4 weeks. All chitosan coated...

Author(s): Esin Derelioglu and Özlem Turgay

Effects of charcoal kiln and microwave oven drying techniques on the chemical and thermal characteristics of tomato and yam slices

March 2022

Most drying equipment required constant electricity, which is rarely available in Sub-Saharan African countries for local farmers. In order to reduce postharvest loss, it is important to develop and use alternative equipment that is cheap and does not require electricity. The aim of this study was to compare the charcoal kiln oven and microwave oven on the drying characteristics of tomato and yam slices, as well as the...

Author(s): Chibuzo S. Nwankwo, James T. Mbachiantim, Victor O. Olanegan, Okpomor O. Endurance, Carew E. Irene, Chigozie F. Okoyeuzu, Belay Dereje and Abebe Teshome

Nutritional and sensory quality of a sorghum snack supplemented with sesame and baobab fruit powder

March 2022

Sorghum, sesame seeds and baobab fruit are commercially viable, underutilized crops in sub-Saharan Africa with potential for use in development of high-quality value-added products for food and nutritional security. This study evaluated effects of processing methods on the nutritional and sensory attributes of a ready to eat snack bar developed from sorghum supplemented with sesame and baobab fruit pulp powder. The...

Author(s): David Edgar Kimani, Catherine Nkirote Kunyanga and Eliud Kahiu Ngugi

Improving the nutritional value of conventional food with underutilized leafy vegetables - consumers’ acceptance of combining porridge with cowpea leaf powder

February 2022

Reaching the second UN Sustainable Development Goal requires improving the nutritional value of food products and dietary diversity. Simultaneously, recent research highlights the importance of processing highly nutritious but underutilized African leafy vegetables (ALV) for lowering post-harvest losses and bridging off-season gaps. Combining both goals, it seems promising to utilize neglected ALV for enhancing...

Author(s): Johanna Tepe and Dominic Lemken

Factors influencing compliance with inspection recommendations in food service establishments: A case study of Mansa Municipality, Zambia

February 2022

Inspection reports reflect daily operations of Food Service Establishments (FSE) with indications on levels of compliance with food safety standards and regulations, thus, making them central to the enforcement processes in food safety control systems. While compliance with food safety standards and regulations in FSEs is often viewed by the number of non-compliances or inspection violations cited during inspections,...

Author(s): Enock Chitakwa, Allan Mbewe and Ntazana N. Sinyangwe

Detection of genetically modified organisms in food products commercialized in Mozambique

February 2022

The increasing presence of food and feed products derived from genetically modified organisms (GMO) has led to the development of detection methods that distinguish between foods derived from biotechnology and conventional foods. Many countries have implemented the Regulations for GM products labelling, therefore the need of establish reliable and accurate detection methods for GMO in raw materials and food products....

Author(s): Joelma Leão-Buchir, Olívia C. N. Pedro, Amélia M. Milisse, Artimísia M. Mabuie, Lucinda De-Araújo, Luís das Neves, and Dácia Correia,

Characterisation and visualisation of foam quality attributes such as foamability, foam stability and foam structure of coffee brews, whole uht milk and coffee-based beverages

January 2022

Consumers value foam as a key quality feature of coffee and coffee-based beverages. However, perceptions of foam quality vary from country to country and even from consumer to consumer. This study provided measurable parameters which can be used to tailor products to consumers’ foam preferences. The analytical techniques described in this study enable the foam of coffee and coffee-milk beverages to be visualized...

Author(s): Sergio Petrozzi

Effect of smoking technologies on nutritional values and concentration levels of polycyclic aromatic hydrocarbons in smoked fish (Mormyrus caschive and Oreochromis niloticus) of Terekeka, South Sudan

January 2022

Effect of smoking technologies on nutritional quality and concentration levels of polycyclic aromatic hydrocarbons (PAHs) in Mormyrus caschive and Oreochromis niloticus were determined to enable adoption and utilization of suitable facility that maintains good quality for sustainable supply of nutritious fish products in South Sudan. A total of 72 fresh M. caschive and O. niloticus were purchased, of which 24 were iced...

Author(s): Borodi Charles Mondo, Peter Akoll, Margaret Masette and Stephen Mulinda

Technological advancements in the drying of fruits and vegetables: A review

December 2021

The aim of the review was to look into technological advances and methods for dehydrating fruits and vegetables, as well as the shortcomings of these methods and potential ways to improve them. All fruits and vegetables can be dried in various forms, including cuts, juice, paste, slurry, and even whole, using various dryers. Recent research on drying has focused on improving energy consumption/ efficiency, product...

Author(s): Nwankwo S. Chibuzo, Ulu F. Osinachi, Mbachiantim T. James, Okoyeuzu F. Chigozie, Belay Dereje and Carew E. Irene

Evaluation of aflatoxin B1 contamination of peanut butter in The Gambia

December 2021

Aflatoxins are poisonous, mutagenic, and carcinogenic compounds produced by Aspergillus fungi that contaminate various agricultural produce and products including peanut butter. Peanut butter is among the most consumed recipe in The Gambia. Thus, a cross-sectional assessment was conducted to evaluate the levels of aflatoxin contamination in processed peanut butter, sold and consumed locally in the country. In...

Author(s): Ebrima A. A. Jallow, Ousman M. Jarju, Oladele Oyelakin, Demba B. Jallow and Badou Mendy,

Evaluation of rapid beta-lactam antibiotic residues detection kits for raw milk

November 2021

Platform tests are usually simple and rapid quality control tests which serve as a basis for accepting, setting aside or rejecting raw milk. Some of the rapid antibiotic residues test kits available in the Kenyan market include: Delvo test Fast BL, Delvo Sulphadiazine Penicillin No Tablet (SPNT), Mtusbio Beta-lactam BLQ Rapid Test Kit and Ringbio beta-lactam, tetracycline, sulfa drugs, BTS 3 in 1 TriTest S. Ndungu...

Author(s): Teresiah W. Ndungu, Mary Omwamba and Patrick S. Muliro

Uses and microbiological quality of fresh cow's milk sold in three markets in South Benin

October 2021

The aim of this study was to determine the common uses and evaluate the microbiological safety of raw milk sold in southern Benin. To determine the different uses of raw milk, 345 individuals were surveyed in three locations (Allada, Ouidah, and Zongo). Per location, 115 individuals were randomly sampled. For the microbial analysis, milk samples were collected from the three targeted locality in southern Benin (Allada,...

Author(s): Oumarou DJOBO, Haziz SINA, Pocoun Damè KOMBIENOU, Wilfrande Morenikè DJENONTIN, Virgile AHYI, Issaka Youssao Abdou KARIM, Adolphe ADJANOHOUN, Manuel RENDUELES and Lamine BABA-MOUSSA  

A novel platform test to detect beta-lactam residues in raw milk

October 2021

The mastitis causing microorganisms resist beta-lactam antibiotics by releasing beta-lactamase and the enzyme can be traced in raw milk. This study was aimed at developing a novel platform test to detect beta-lactam antibiotics residues in raw milk based on the Hardy Diagnostic Beta-lactamase Test (HDBT) reagent. The HDBT ingredients modified were penicillin, sodium chloride, trisodium citric acid, trisodium phosphate...

Author(s): Teresiah W. Ndungu, Patrick S. Muliro and Mary Omwamba

Evaluation of chemical composition of Dacryodes edulis (african pear) seed oil at different stages of fruit maturation

September 2021

Nutritional and industrial processes have increased the demand for oils and this in turn has led to the search for oils from different types of seeds for possible development and use. It is in this vein that the fruit pulp of Dacryodes edulis was extracted with n-hexane (soxhlet extraction at 65°C). The proximate composition, antinutrient and mineral content of freshly harvested D. edulis fruit pulp from 4 weeks...

Author(s): Esosa Samuel Uhunmwangho and Ehimwenma Sheena Omoregie

Encapsulation and gastrointestinal endurance of Lactobacillus reuteri DSM 17938 strain with emulsion polymerization

September 2021

L. reuteri DSM 17938 strain was encapsulated using emulsion polymerization technique with alginate and fructooligosaccharide at five different concentrations between 0 and 1.5%. This study aimed to improve the gastrointestinal system (GIS) viability of L. reuteri. Encapsulation yield was calculated and found to be between 98.67 and 86.88%, and SEM imaging was performed for beads, and their sizes were found to range from...

Author(s): Elif Çelik And Özlem Turgay

Physico-chemical properties of kernel from coconut (Cocos nucifera L.) varieties grown at the Kenyan Coast

August 2021

The coconut tree (Cocos nucifera) is widely referred as the “tree of life” for its important role in the livelihoods of 10 million persons from over 90 countries globally. In Kenya, the coconut sub-sector is valued at KES 25 billion, yet only 65% is utilised, which is partly contributed by insufficient knowledge of the coconut’s physico-chemical features and investment in the sector. Physico-chemical...

Author(s): Gaston O. Adoyo, Daniel N. Sila and Arnold N. Onyango

Evaluation of the microbiological and physico-chemical characteristics of local tomato ‘Solanum lycopersicum’ puree produced on a small scale in Togo

August 2021

Tomatoes are produced, processed and widely consumed by the Togolese population. However, the local production is not developed enough to be able to provide locally processed tomatoes. In order to promote local development, stimulate local processing and reduce post-harvest losses, the processing into puree was undertaken with three locally grown varieties of tomatoes in Togo (Aklikonvi, Tohounvi, and Pomvi). A method...

Author(s): Mawuena Gott’liebe Goka, Marie Dufrechou, Pierre Picouet and Yaovi Ameyapoh

Effects of freezing as a post-harvest storage technique on quality of Friesian crossbred cattle milk

July 2021

Twenty-five raw milk samples from Friesian crossbred dairy cows were analyzed for milk fat, protein and lactose using an ultrasonic milk analyzer. The samples were then subjected to two different freezing protocols; single freezing and multiple freezing, after which parameters were reanalyzed after freezing and thawing at different freezing times (24, 48, and 72 h). Paired t-test was used to compare the effect of...

Author(s): Lilian Mutheu Musembei, Rawlynce Cheruiyot Bett, Charles Karuku Gachuiri, Benjamin Kyalo Mbondo and Felix Matura Kibegwa

Studies on some physico-chemical and engineering properties of Musa spp (ABB) starch flour

July 2021

This study investigated some physiochemical and engineering properties of Musa spp (ABB) starch flour using standard procedures with a view to providing data that will aid in process design, control and bulk handling of Musa spp (ABB) starch flour. Loose and packed bulk densities, the least gelation concentration, density ratio and porosity ranged between 0.47 to 0.70 g/mL, 0.60 to 0.95 g/mL, 8 to 16% (w/v), 74.25 to...

Author(s): W. A. Adebayo, B. S. Ogunsina, K. A. Taiwo and P. O. Chidoziri

Profiling of processors for baked and fried wheat based products in Nairobi Kenya

July 2021

This study aimed at profiling bakers and fryers of wheat products in Nairobi to inform decisions leading towards incorporation of Orange Fleshed Sweet Potato (OFSP) puree in these products. An exhaustive sampling was carried out and 748 processors were interviewed in Nairobi County. The results indicate that even though there were more female processors than men, this difference was not significant (p>0.05). Majority...

Author(s): George Ooko Abong, Mukani Moyo, Elmah Odhiambo Geoffrey and Tawanda Muzhingi

Meat quality status and postharvest handling practices along the meat value chain in Kenya

June 2021

In Kenya, meat value chain (MVC) is an important component of the food supply chain serving as a source of nutrients and income. However, information regarding processing practices, hygiene and equipment use as affecting meat quality still remains unclear despite its relevance for data and for assessment for development of meat quality in the meat trade. Therefore, a cross sectional survey of selected slaughterhouses...

Author(s): Catherine Kunyanga, David Edgar Kimani and Grace Werikhe

Improving shelf life of nectarine fruit (Prunus persica) by beeswax coating and cold storage application

June 2021

This study was carried out to determine the effect of beeswax coating and cold storage condition on the shelf life of nectarine fruit. A total of 240 nectarine fruits were collected and divided into six treatments, each with 40 fruits. The treatments consisted of coated fruits stored at  6°C (T1), coated fruits stored at 1°C (T2), coated fruits stored at ambient temperature (T3), uncoated fruits stored at...

Author(s): Abdi K., Getenesh T., Bilatu A., Firew K. and Habtamu S.

Phenotypic and genotypic characterization of lactic acid bacteria isolated from spontaneously fermented vegetable amaranth

June 2021

Lactic acid bacteria (LAB) are Gram-positive, non-spore-forming, catalase-negative cocci or rod-shaped bacteria that produce lactic acid as a major fermentation product. They are also involved in the production of fermented foods. They have applications in industry and human health, such as food preservation and probiotics. The aim of this research was to isolate, characterize, and classify indigenous lactic acid...

Author(s): Ibinabo Tamunodiepriye Iruene, Eliud Nalianya Wafula, Josiah Kuja and Julius Maina Mathara  

Effects of processing on nutrient composition in guava- and jackfruit-based snacks

June 2021

Guava and jackfruit are popular fruits in East Africa. With consideration of the high post-harvest losses of these two fruits and only seasonal availability, this study aimed to produce nutrient rich fruit-based snacks to decrease this problem and make use of surplus fruits during on-season. Given the nutritional situation in East Africa, these products were also developed to have a high content of desired nutrients....

Author(s): Sirui Xing, Gudrun B. Keding and Elke Pawelzik

Quality assessment of Ugali blended with orange-fleshed sweet potato to alleviate vitamin A deficiency in Tanzania

April 2021

Approximately 38% of Tanzanian children have vitamin A deficiency (VAD), and the majority of them do not have access to vitamin A-fortified foods. Orange-fleshed sweet potato (OFSP), a new crop in Tanzania, is rich in β-carotene, and could be a cheaper solution for VAD. The objectives of this study were to develop a type of Ugali (stiff maize porridge) fortified with OFSP, to correlate its β-carotene content...

Author(s): Roman M. Fortunatus, Amarat H. Simonne and Richard J. Mongi

Bio-based packaging used in food processing: A critical review

April 2021

Food packaging plays an important role in ensuring the global quality of the food consumed by people. Technological progress has been achieved in recent years in the food packaging sector, leading to a great diversity of food packaging, including bio-based packaging. This review highlights the different types of biodegradable polymers that are used for food packaging production, their characteristics and effects on food...

Author(s): Romaric Ouétchéhou, Déley Sylvain Dabadé, Générose Vieira-Dalodé, Abadjayé Faouziath Sanoussi, Akouavi Balbine Fagla-Amoussou, Menouwesso Harold Hounhouigan, Djidjoho Joseph Hounhouigan and Paulin Azokpota

Application of wedge fracture test for texture analysis in boiled sweetpotato (Ipomoea batatas)

April 2021

Several instrumental texture analysis methods have been developed for use in sweetpotato. However, there are very few reports on the use of the wedge fracture test. The purpose of the study was to develop a texture analysis method using a wedge fracture and evaluate its performance against compression test in assessing sweetpotato varieties with different cooking times. The optimal cooking time (OCT) of five sweetpotato...

Author(s): Linly Banda, Mukani Moyo, Mariam Nakitto, Jolien Swanckaert, Arnold Onyango, Esther Magiri, Gordon McDougall, Laurence Ducreux, Mark Taylor and Tawanda Muzhingi,

Nutrient and mineral components of wild edible mushrooms from the Kilum-Ijim forest, Cameroon

April 2021

Kilum-Ijim forest is a montane forest in the North West Region of Cameroon. Wild edible mushrooms are mostly consumed by the communities of Kilum-Ijim as substitute of meat to obtain protein, hence the need to evaluate the nutrient and mineral components of the species consumed in these communities. The most eight preferred wild mushroom species from ethnomycological studies are: Polyporus tenuiculus, Termitomyces...

Author(s): Ache Neh Teke, Manju Evelyn Bi, Lawrence Monah Ndam and Tonjock Rosemary Kinge

Marketing potential of improved dried sardine (Sardinella gibossa) and capelin (Mallotus villosus) in the Southern Kenyan coast

April 2021

Traditional dried small fish are an important source of protein for low income people in many developing countries. The aim of this study was to determine marketing potential of improved dried sardine and capelin as new products in markets accustomed to traditional dried small fish. One hundred and twenty participants were recruited among shoppers at supermarkets and open-air markets in Kenya. Each participant received...

Author(s): Odoli Ogombe Cyprian, Kolbrun Sveinsdottir, Peter Michael Oduor-Odote and Sigurjon Arason,

Effect of harvest age of cassava roots and sweet potato tubers on alcohol yield

April 2021

Several studies have been conducted in the past using cassava and sweet potato as feedstock to optimise the yield of alcohol. Harvest age of cassava and sweet potato may have some effects on the fermentable carbohydrates quantity. This study aims to establish the best harvest age of cassava and sweet potato for alcohol production. Two varieties of cassava (Sika bankye and Ampong) cultivated and harvested at 8, 10 and 12...

Author(s): Komlaga, G. A., Oduro, I., Ellis, W. O. and Dziedzoave, N. T.

Effect of flour types and flour concentrations on the physicochemical and sensory characteristics of an indigenous senescent plantain cake (ofam)

April 2021

Ofam is a Ghanaian indigenous cakelike product made mainly from senescent plantain and local flours from cereal, grain and/or tuber sources. The effect of three flour types (steeped corn flour (SCF), roasted corn flour (RCF) and kokonte flour (KF)) and flour concentrations (20, 17.5, 15, 12.5 and 10%) on the physicochemical characteristics and sensory acceptability ofam was investigated. Parameters such as moisture, pH,...

Author(s): Doreen Dedo Adi, Ibok N. Oduro and Charles Tortoe

Contribution of fish in improving micronutrients content in complementary foods for children aged 6 to 23 months in Lindi Rural District

April 2021

Lindi region has high stunting prevalence of about 35%, and one of the factors that cause stunting is inadequate intake of micronutrients for children under 2 years old. This study aimed at assessing contribution of fish in improving micronutrients, specifically vitamin A, zinc and iron contents in complementary foods for children aged 6 to 23 months old children in Lindi Rural District. A cross-sectional study was...

Author(s): Hope Masanja, Theresia Jumbe and Renatha Pacific

Evaluation of cooking time and organoleptic traits of improved Dolichos (Lablab purpureus (L.) sweet) genotypes

April 2021

In Lablab bean, cooking time and organoleptic qualities are major factors that influence its adoption and consumption. Its production in Kenya has been constrained by low yielding varieties, pests, poor agronomy and varieties with non-preferred taste and flavor. This study was initiated to evaluate cooking time and organoleptic traits of six Dolichos genotypes, (G2, B1, M5, LG1, W7 and G2), that had been bred at the...

Author(s): David Ngure, Miriam Kinyua and Oliver Kiplagat  

Harvesting, postharvest handling, hygiene knowledge and practices of guava fruit farmers: A comparative study of two counties of Kenya

April 2021

The guava (Psidium guajava) grows on farms or in the bush in many parts of Kenya, including Kitui and Taita Taveta, and remains virtually unattended. Guava fruit value chain is commercially disorganized and standard postharvest handling and storage procedures are not practiced as there is no bulk handling.  This study evaluated the harvesting and postharvest handling practices of the guava fruit in two counties of...

Author(s): Judith N. Katumbi, Jasper K. Imungi, George O. Abong, Charles K. Gachuiri, Agnes W. Mwang’ombe, Duke G. Omayio and Joshua O. Owade

Quality and sensory properties of instant fried noodles made with soybean and carrot pomace flour

March 2021

Wheat flour commonly used in making noodles is rich in starch but poor in protein and fiber. Wheat flour substituted with soybean and carrot pomace flours were used to produce instant fried noodles. Soybean is high in protein while carrot pomace is rich in dietary fiber. The aim of this study was to evaluate the effect of substituting wheat flour with soybean and carrot pomace flour on the physicochemical, cooking and...

Author(s): Tiony Mercy Chepkosgei and Irene Orina

Handling practices and microbiological quality of kayabo - salted sun-dried nileperch Lates niloticus from Lake Victoria, Tanzania

March 2021

This study assessed handling practices and microbiological contamination of salted sun-dried Nile Perch, Lates niloticus, commonly known as Kayabo in Tanzania. The processors of Kayabo were small-scale processors located at Kanyama and Mwaloni, Mwanza. Mixed methods (observations, face-to-face interviews, and microbiological sampling) were used to assess handling practices of processors and...

Author(s): Nuru E. Mwasulama, Jamal B. Kussaga and Bendantunguka P. M. Tiisekwa  

Increasing gallic acid contents in green tea extracts using acid hydrolysis

March 2021

Gallic acid (GA) is a functional ingredient abundant in Chinese pu-erh tea. The aim of this study was to increase the GA content in green tea extracts using acid hydrolysis. (-)-Epigallocatechin gallate treated with 1 M hydrochloric acid at 110°C for 1 h resulted in a GA yield of 45.6%. However, under these conditions, (-)-epigallocatechin was easily oxidized and rendered undetectable. On applying the same treatment...

Author(s): Hae-Soo Kim, Do Yeon Jeon, Ha-Nul Lee, Seong-Jin Hong, Seung-Hee Nam, Jeong Choi, Yong-Hee Kwon, Doo-Gyung Moon, and Young-Min Kim

Inactivation of microbes by ozone in the food industry: A review

March 2021

Ozone is active against a broad spectrum of microorganisms. Ozone treatment can enhance safety and increase shelf life with limited impact on product quality. Ozone is known to be one of the strongest oxidizers that can have applications in foods. In the gaseous state, ozone is denser than air, colorless at lower concentrations and possesses a distinct odor. Ozone can be generated using a few methods, by photochemical...

Author(s): Mohamed Ziyaina, and Barbara Rasco

Assessment of phytochemical and mineral composition of unripe and ripe plantain (Musa paradisiaca) peels

March 2021

Plantain (Musa paradisiaca) fruit constitutes a staple food widely consumed predominantly in Africa. The peel, a major by-product, of plantain fruit is largely viewed to be of little or no significance and consequently discarded, thereby constituting a threat to the environment. It is on account of the foregoing that this study was designed to investigate the phytochemical and mineral components of both the unripe and...

Author(s): Sani Muhammad Uzairu and Muhammad Atiku Kano

Impact of instant controlled pressure drop (DIC) treatment on the technological quality of gluten-free bread based on rice-field bean formula using design of experiments

March 2021

This work aimed to investigate the impact of Instant Controlled Pressure Drop (DIC) treatment on the technological quality of Gluten-Free Bread (GFB) based on Rice-Field bean Formula (RFF). Two DIC factors were used as independent parameters of a Design of Experiments (DoE); X1: DIC temperature ranged from 100 to 165°C which was rigorously correlated with the dry saturated steam pressure ranged between 0.1 and 0.7...

Author(s): Souad BOULEMKAHEL, Leila BENATALLAH, Colette BESOMBES, Karim ALLAF and Mohammed Nasreddine ZIDOUNE

Nutritional, health benefits and usage of chia seeds (Salvia hispanica): A review

February 2021

As we enter the 3rd millennium, with improved life expectancy, and high media coverage of health care issues, people are becoming more aware of and interested in the potential benefits of nutritional support for disease control or prevention. The review aimed to gather published information regarding nutrition and health benefits associated with the use of chia seeds for human health. Researchers have reported chia...

Author(s): Ashura Katunzi-Kilewela, Lillian D. Kaale, Oscar Kibazohi and Leonard M. P. Rweyemamu

Successful value-chain approach for oat industry; development and quality evaluation of oat (Avena sativa) incorporated yogurt

February 2021

Oat (Avena sativa) is a cereal rich in fiber and nutrients necessary for good health. This study was conducted to develop oat flakes incorporated yogurt. Oat flake concentrations were used at 2.5, 3.75, and 5 g of oats per 100 ml of milk. The selected oat concentration from a sensory evaluation was compared with a commercial yogurt for consumer preference and proximate analysis. The shelf life of the selected yogurt...

Author(s): M. K. S. Malki, K. M. G. K. Pamunuwa and J. A. A. C. Wijesinghe

African yam beans (Sphenostylis stenocarpa): A review of a novel tropical food plant for human nutrition, health and food security

February 2021

This review investigated African yam beans (AYB) as a novel tropical food plant for human nutrition. AYB plants food potentials, its nutritional and amino acid compositions were also examined. In the same vein, the health benefits, utilization of AYB in starch and composite flour technology as well as its toxicological analysis were explored. Also, strategies to minimize processing difficulties and antinutritional...

Author(s): Gbenga-Fabusiwa F. J.

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