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Phenolic compounds in grains, sprouts and wheatgrass of hulled and non‐hulled wheat species
Author(s) -
Benincasa Paolo,
Galieni Angelica,
Manetta Anna Chiara,
Pace Roberta,
Guiducci Marcello,
Pisante Michele,
Stagnari Fabio
Publication year - 2015
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/jsfa.6877
Subject(s) - sprouting , biology , agronomy , polyphenol , nutrient , horticulture , chemistry , botany , ecology , biochemistry , antioxidant
BACKGROUND The use of sprouts and young plantlets in human nutrition is increasing because they often contain phytochemicals and other high value nutrients. This is also the case for wheat, although there is no literature for hulled wheat species. Thus we determined total polyphenols, phenolic acids (PAs), fibre and minerals in grains, 5‐day‐old sprouts and 12‐day‐old wheatgrass of einkorn (cv. Monlis), emmer (cvs Augeo, Rosso Rubino, Zefiro), spelt (cvs Pietro, Giuseppe), durum wheat (cv. Creso) and soft wheat (cv. Orso). RESULTS Grains of einkorn and emmer contained twice bound PAs as compared to soft and durum wheat and spelt, with p ‐coumaric acid accounting for about 50% of total bound PAs. In wheatgrass, differences between species for bound PAs decreased due to a decrease in einkorn and emmer and an increase in soft and durum wheat. In all species, total phenols and free PAs increased passing from grains to sprouts and wheatgrass. Neutral and acid detergent fibre content increased with sprouting only in einkorn and emmer. CONCLUSION Our evidence suggests that the grains of einkorn and emmer and the sprouts and wheatgrass of all Triticum species might potentially be valuable for the development of functional foods. © 2014 Society of Chemical Industry