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Myrosma cannifolia , chemical composition and physicochemical properties of the extracted starch
Author(s) -
Rincón Alicia M,
Padilla Fanny C,
Araujo Consuelo,
Tillett Stephen
Publication year - 1999
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/(sici)1097-0010(19990315)79:4<532::aid-jsfa213>3.0.co;2-j
Subject(s) - starch , crystallinity , chemical composition , food science , chemistry , ingredient , rheology , composition (language) , scanning electron microscope , materials science , crystallography , composite material , organic chemistry , linguistics , philosophy
Myrosma cannifolia Lf (Maranthaceae) is atuber‐producing plant which is native to Apure State inVenezuela and is consumed by the Pumé Amerindians of theregion. Its chemical composition and physical characteristics weredetermined. The chemical, physicochemical, morphometriccharacteristics and rheological properties of starch isolated from Myrosma were studied. The starch yield was 438.6 g kg −1 (DW). Starch granules were oval,elliptical, irregular and polyhedric, with granules of9.5–21.25 μm wide and 9.6–19.05 μm long. Scanningelectron micrographs revealed the presence of smooth surfaces. Thestarch showed a characteristic ‘A‐pattern’ ofcereal starches by X‐ray diffraction, with zones of highcrystallinity. The amylographic study showed a rapid gelatinisationwith high stability during heating and cooling cycles. The starchmight be a potential ingredient for food products manufactured usingdifferent temperatures during processing. © 1999 Society of Chemical Industry