Determining the nutritional value and antioxidant capacity of duckweed (Wolffia arrhiza) under artificial conditions
2022
Hu, Zhubin | Fang, Yang | Yi, Zhuolin | Tian, Xueping | Li, Jinmeng | Jin, Elaine | He, Kaize | Liu, Penghui | Du, Anping | Huang, Yuhong | Zhao, Hai
Duckweeds are traditionally used as a plant protein source in some Southeast Asian countries. In this study, we first obtained a high-protein strain (Wolffia arrhiza 7678a) under artificial conditions and determined its protein content in 50.89% of dry weight. More importantly, we further investigated its nutritional properties. The digestible indispensable amino acids score (DIAAS) reached 0.75, indicating the good protein quality of W. arrhiza. The proportion of unsaturated fatty acids in total fatty acids (TFA) was 70.85%, and three main fatty acids (palmitic acid, linoleic acid, α-linolenic acid) accounted for 89.7% of TFA. Compared with the conventional crops, it had much higher contents of total phenolics and flavonoids and showed higher antioxidant activities. Also, the low concentrations of antinutritional factors could make the nutrients of W. arrhiza easily absorbed. Therefore, W. arrhiza showed a great potential value for human food.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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