Evaluation of nutritional value and antioxidant activity of root and leaf of Samarakhai (Byttneria herbacea Roxb.): An extra pharmacopoeial herb.

Ayu Pub Date : 2020-01-01 Epub Date: 2021-07-30 DOI:10.4103/ayu.AYU_270_18
Tarun Sharma, Rabinarayan Acharya
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引用次数: 1

Abstract

Background: Samarakhai (Byttneria herbacea Roxb.), family Sterculiaceae, is one of the reputed folklore medicinal herbs, found in many parts of India. Although consumed as a vegetable since long time, its root and leaves are not yet reported for its nutritive value and antioxidant activities.

Aim: The aim of this study was to evaluate nutritional value and antioxidant potential of root and leaf of B. herbacea Roxb.

Materials and methods: Nutritional parameters such as carbohydrate, fat, protein, energy value, calcium, iron, zinc, manganese, phosphorus and vitamin C were evaluated. Antioxidant activity was evaluated through three test methods, i.e., 1,1-diphenyl-2-picrylhydrazyl, ferric-reducing antioxidant power (FRAP) and phosphomolybdenum assay.

Results: B. herbacea roots and leaves showed the presence of total carbohydrate 46.39 g/100 g and 40.12 g/100 g, total fat 0.63 g/100 g and 1.20 g/100 g, true protein 11.46 g/100 g and 10.49 g/100 g, energy content 237.07 kcal/100 g and 213.24 kcal/100 g, iron 821.10 ppm and 889.64 ppm, zinc 9.2 ppm and 47.98 ppm, manganese 329.86 ppm and 474.59 ppm, phosphorus 0.40 ppm and 0.10 ppm and calcium 4856.84 ppm and 14964.49 ppm, respectively. The half-maximal inhibitory concentration values of the methanol extract of root, leaf and ascorbic acid were found to be 217.25 µg/ml, 131.42 µg/ml and 178.88 µg/ml, respectively. In FRAP assay, antioxidant activity of methanol extract of leaf (129.15 µM) was found to be more than root (73.13 µM).

Conclusion: B. herbacea root contains high amount of true protein, carbohydrate and energy value, while micronutrients such as iron, zinc, manganese and calcium are more in its leaf. Both roots and leaves exhibited potent antioxidant activity where the leaves possess more values than the roots.

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一种额外的药典草本植物——菝葜(Byttneria herbacea Roxb.)根和叶的营养价值和抗氧化活性评价。
背景:菝葜(Byttneria herbacea Roxb.),蕨科,是一种著名的民间草药,在印度许多地方都有发现。虽然长期以来作为蔬菜食用,但其根和叶的营养价值和抗氧化活性尚未见报道。目的:评价草芽草根和叶的营养价值和抗氧化潜力。材料与方法:测定碳水化合物、脂肪、蛋白质、能量值、钙、铁、锌、锰、磷、维生素C等营养参数。通过1,1-二苯基-2-苦味酰肼、铁还原抗氧化能力(FRAP)和磷钼试验三种方法评价其抗氧化活性。结果:根和叶的总碳水化合物含量分别为46.39 g/100 g和40.12 g/100 g,总脂肪含量分别为0.63 g/100 g和1.20 g/100 g,真蛋白质含量分别为11.46 g/100 g和10.49 g/100 g,能量含量分别为237.07 kcal/100 g和213.24 kcal/100 g,铁含量分别为821.10 ppm和889.64 ppm,锌含量为9.2 ppm和47.98 ppm,锰含量为329.86 ppm和474.59 ppm,磷含量分别为0.40 ppm和0.10 ppm,钙含量分别为4856.84 ppm和14964.49 ppm。根、叶和抗坏血酸甲醇提取物的半最大抑菌浓度分别为217.25µg/ml、131.42µg/ml和178.88µg/ml。在FRAP实验中,叶甲醇提取物(129.15µM)的抗氧化活性高于根(73.13µM)。结论:草根中含有较高的真蛋白质、碳水化合物和能值,叶中含有较多的铁、锌、锰、钙等微量元素。根和叶均表现出较强的抗氧化活性,其中叶的抗氧化活性高于根。
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Ayu
Ayu
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