African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12412

Full Length Research Paper

Investigation of dietary fiber, protein, vitamin E and other nutritional compounds of banana flower of two cultivars grown in China

Zhan-Wu Sheng1, Wei-Hong Ma1, Zhi-Qiang Jin1,2* Yang Bi3, Zhi-Gao Sun4 , Hua-Ting Dou5, Jin-He Gao1, Jing-Yang Li1 and Li-Na Han1
  1Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, 570102 Haikou, Hainan, P. R. China. 2Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, 571101 Haikou, Hainan, P. R. China. 3College of Food Science and Engineering, Gansu Agriculture University, 730070 Lanzhou, Gansu, P. R. China. 4Citrus Research Institute, Chinese Academy of Agricultural Sciences, 400712 Chongqing, P. R. China. 5Department of Citrus, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA.
Email: [email protected]

  •  Accepted: 31 May 2010
  •  Published: 21 June 2010

Abstract

 

The nutritional composition of banana flowers of two cultivars [cvs. Baxijiao (AAA) and Paradisical (AAB)] grown in Hainan of China has been studied. Flower samples were collected and extracted according to methods of Association of Official Analytical Chemists (AOAC). Results showed that banana flowers contained abundant dietary fiber (4.96-5.74 g/100g) and proteins (1.62-2.07 g/100 g). The major amino acids are glycine, leucine, alanine, and aspartic acid. Lysine had a lowest chemical score of 64% among the essential amino acids. In both species, flowers contained a higher composition of unsaturated fatty acids (65-66%), mainly the linoleic acid, while saturated fatty acids (mainly palmitic acid) is low.  The contents of vitamin E, total saponin and flavonoids were 0.87-1.07, 0.12 and 5.27–5.90 mg/100 g, respectively. This study provides a fundamental nutritional data of banana flowers which can be essential in food science.

 

Key words: Banana flower, protein, dietary fiber, vitamin E.