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Year : 2019  |  Volume : 8  |  Issue : 3  |  Page : 57-67

Nutrient and phytonutrient composition of rhus semialata, an underutilised fruit of north east india

1 National Institute of Nutrition, ICMR, 500007, India
2 Regional Occupational Health Centre (Southern), ICMR, 562110, India

Correspondence Address:
Rajendran Ananthan
National Institute of Nutrition, ICMR, 500007
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Source of Support: None, Conflict of Interest: None

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Underutilised foods have major contribution in the food security, nutrition, health, economic and environmental services. Fruit of Rhus semialata is a underutilized food consumed in north eastern India and have great application in the traditional medicine. The study aimed to determine the nutrient and phytonutrient profiles of the fruit. The fruit had 8.13% protein, 16.70% fat, 2.86% ash, 44.91% total dietary fibre and 24.29% carbohydrate. Minerals like Fe, Ca, Zn, K, Na and P were 1.45, 183, 1.45, 452, 3.2 and 276 mg/100 g respectively. Vitamin content of fruit was 21.26 mg vitamin C, 314 μg folates, 628 μg carotenoids and 2.94 mg a-tocopherol equivalent in 100 g of sample. Total essential amino acid was 31.43 mg/100 g of protein with sulphur containing amino acids as limiting amino acid. Linoleic acid was the major fatty acid of the fruit. The fruit showed 7.5 mg/ml of IC 50 in DPPH assay, 1226 mmol ferrous sulphate equivalent/100 g in FRAP assay, 229 μmol ascorbic acid equivalent and 100 µmol trolox equivalent/g of sample for water and lipid extracts respectively in superoxide anion radicle scavenging assay. Gallic acid was the most abundantly found individual polyphenol analysed. Considering the presence of both primary and secondary metabolites, Rhus semialata could be a potential underutilised food source in terms of nutrients and phytonutrient application.

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