African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6530

Full Length Research Paper

Physical and chemical characteristics and instrumental color parameters of passion fruit (Passiflora edulis Sims)

Marco Antonio Pereira da Silva
  • Marco Antonio Pereira da Silva
  • Instituto Federal Goiano - Campus Rio Verde, P. O. Box 66, zip code 75901-970, Rio Verde, Goiás, Brazil.
  • Google Scholar
Geovana Rocha Plácido
  • Geovana Rocha Plácido
  • Instituto Federal Goiano - Campus Rio Verde, P. O. Box 66, zip code 75901-970, Rio Verde, Goiás, Brazil.
  • Google Scholar
Márcio Caliari
  • Márcio Caliari
  • Escola de Agronomia e Engenharia de Alimentos da Universidade Federal de Goias, CampusSamambaia - RodoviaGoiânia/Nova Veneza, Km 0, P. O. Box 131, zip code 74690-900, Goiânia, GO, Brazil
  • Google Scholar
Bruno de Sousa Carvalho
  • Bruno de Sousa Carvalho
  • Instituto Federal Goiano - Campus Rio Verde, P. O. Box 66, zip code 75901-970, Rio Verde, Goiás, Brazil.
  • Google Scholar
Richard Marins da Silva
  • Richard Marins da Silva
  • Instituto Federal Goiano - Campus Rio Verde, P. O. Box 66, zip code 75901-970, Rio Verde, Goiás, Brazil.
  • Google Scholar
Caroline Cagnin
  • Caroline Cagnin
  • Instituto Federal Goiano - Campus Rio Verde, P. O. Box 66, zip code 75901-970, Rio Verde, Goiás, Brazil.
  • Google Scholar
Maria Siqueira de Lima
  • Maria Siqueira de Lima
  • Instituto Federal Goiano - Campus Rio Verde, P. O. Box 66, zip code 75901-970, Rio Verde, Goiás, Brazil.
  • Google Scholar
Ruthele Moraes do Carmo
  • Ruthele Moraes do Carmo
  • Instituto Federal Goiano - Campus Rio Verde, P. O. Box 66, zip code 75901-970, Rio Verde, Goiás, Brazil.
  • Google Scholar
Rânio César Francisco da Silva
  • Rânio César Francisco da Silva
  • Escola de Agronomia e Engenharia de Alimentos da Universidade Federal de Goias, CampusSamambaia - RodoviaGoiânia/Nova Veneza, Km 0, P. O. Box 131, zip code 74690-900, Goiânia, GO, Brazil
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  •  Received: 28 September 2014
  •  Accepted: 17 February 2015
  •  Published: 05 March 2015

Abstract

The aim of this study was to evaluate the physical and chemical characteristics and variations of instrumental color parameters of passion fruit (Passiflora edulis Sims) at different maturation stages. Fruits were harvested directly from passion fruit plants, selected according to maturation stage and distributed into three distinct groups: Fruits with 1/3 yellow peel (stage 1); fruits with 2/3 yellow peel (stage 2) and yellow fruits (stage 3). Physical characteristics (length, equatorial diameter, length / equatorial diameter ratio, volume, weight and peel thickness), aryl, peel, pulp and seed yield, maturation index and physicochemical characteristics (pH, total soluble solids (TSS), titratable acidity and vitamin C) were evaluated. Instrumental color parameters (L *, a *, b *, chroma and H °) of peel and pulp were evaluated for passion fruits at the three maturation stages. The results were analyzed using a completely randomized design. Passion fruits showed high peel yield. Parameters pH, titratable acidity and TSS of passion fruit pulp were consistent with minimum values established by Brazilian legislation. Peel and pulp lightness were inversely proportional and pulp decreased lightness with increasing maturation stages. Color parameters could be used to assess color changes during maturation of passion fruit with more suitable results for maturation stages 2 and 3.

 

Key words: Passifloraceae, chroma, maturation stage, yield.