The contents of protein and oligopeptides, molecular weight distribution, amino acid profile and bioactive peptides of perilla (Perilla frutescens L. Britt.) seed oligopeptides were studied. The results showed that the protein content and the oligopeptides content were 93.14% and 86.35%, respectively. And the relative molecular weight was mainly distributed in the range of 140 – 1 000 Da, which accounted for 82.8% of the total proportion. Additionally, the amino acid composition is relatively balanced, while the arginine content is relatively high, reaching 102.72 mg/g. Cysteine and methionine were the limiting amino acids of perilla seed oligopeptides. The essential amino acid index was 59.55%, and the amino acid composition basically conforms to the pattern of amino acid requirements of adults recommended by FAO/WHO. Moreover, two biologically active dipeptide structures were identified from the perilla seed oligopeptides, namely glycyl-arginine dipeptide (GR) and alanyl-arginine dipeptide (AR). And it was the first time that these two dipeptide sequences were identified from perilla seed oligopeptides.
WANG Yuqing
,
JIANG Sheng
,
GUO Ying
,
DONG Zhe
,
WANG Yuchen
,
BI Yuan
,
CHEN Liang
,
GU Ruizeng
. Nutrition and characteristic components of perilla (Perilla frutescens L. Britt.) seed oligopeptides[J]. Food and Fermentation Industries, 2020
, 46(18)
: 19
-23
.
DOI: 10.13995/j.cnki.11-1802/ts.023994
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