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Diosgenin quantification, characterisation and chemical composition in a tuber collection of D ioscorea spp. in the state of J alisco, M exico
Author(s) -
Lourdes ContrerasPacheco María,
SantacruzRuvalcaba Fernando,
GarcíaFajardo Jorge A.,
Jesús Sánchez G. José,
Ruíz L. Mario A.,
EstarrónEspinosa Mirna,
CastroCastro Arturo
Publication year - 2013
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/ijfs.12193
Subject(s) - diosgenin , maceration (sewage) , pulp (tooth) , dry weight , chemistry , food science , chemical composition , composition (language) , botany , horticulture , biology , medicine , organic chemistry , pathology , linguistics , materials science , philosophy , composite material
Summary D ioscorea spp. tubers are known commonly as camote de cerro to the state of Jalisco, México. Besides its use as food, it contains diosgenin, a raw material used widely for synthesising steroid hormones. The purpose of the present research was to determine diosgenin contents by gas chromatography‐mass spectrometry ( GC ‐ MS ), as well as physical and chemical characteristics of sixty D ioscorea spp. accessions cultivated in mesh shade coming from eleven localities in the state of Jalisco. Extraction protocol for diosgenin was maceration combined with ethanol 80%. Significant statistical differences for diosgenin content were found between accessions, finding levels between 0.02 and 0.16 mg kg −1 in dry basis. Length, weight tuber, proportion pulp/skin, percentage of pulp and percentage of skin showed significant differences. Chemical composition based in fresh weight presented in moisture percentage a range of 71.93–83.26%, crude protein 1.42–1.74%, ashes 0.80–1.16%, lipid 0.13–0.17%, crude fibre 3.80–4.02% and total carbohydrates 13.97–25.44%. Results show that tubers from Jalisco can be an important source of nutrients for consumers.

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