Sakthivel Ravi, Pandima Devi Kasi
Department of Biotechnology, Alagappa University, Karaikudi 630 004, Tamil Nadu, India.
Department of Biotechnology, Alagappa University, Karaikudi 630 004, Tamil Nadu, India.
Food Chem. 2015 May 1;174:68-74. doi: 10.1016/j.foodchem.2014.10.142. Epub 2014 Nov 1.
Gracilaria edulis, a red alga present in southeast coast of India was evaluated for its nutritional composition. FT-IR analysis of soluble polysaccharides revealed the presence of galactans, 3,6-anhydro-α-L-galactopyranose, sulphated galactose and the gelling agent agar, with the sulphate content estimated as 51.01 μg/mg of polysaccharide. Results of physicochemical properties and nutritional profile reveal the presence of dietary fibre (8.9 ± 0.62% DW), carbohydrate (101.61 ± 1.8 mg/g DW), crude protein (6.68 ± 0.94 mg/g DW) and lipid content (8.3 ± 1.03 mg/g DW). G. edulis contains biologically important fatty acids like palmitic acid (2.06%), linolenic acid (2.56%), and oleic acid (1.98%). The other nutritional components present in high amounts are proline, chlorophyll A and B, all the essential amino acids and vitamin A, E and C. These findings suggest that G. edulis has potent nutritional value which might be used as a source of nutrients for human and animals.
对印度东南沿海的一种红藻——可食用江蓠（Gracilaria edulis）的营养成分进行了评估。对可溶性多糖的傅里叶变换红外光谱（FT-IR）分析表明，其含有半乳聚糖、3,6-脱水-α-L-吡喃半乳糖、硫酸化半乳糖和胶凝剂琼脂，多糖的硫酸盐含量估计为51.01μg/mg。理化性质和营养成分分析结果显示，其含有膳食纤维（8.9±0.62%干重）、碳水化合物（101.61±1.8mg/g干重）、粗蛋白（6.68±0.94mg/g干重）和脂质含量（8.3±1.03mg/g干重）。可食用江蓠含有生物学上重要的脂肪酸，如棕榈酸（2.06%）、亚麻酸（2.56%）和油酸（1.98%）。其他大量存在的营养成分有脯氨酸、叶绿素A和B、所有必需氨基酸以及维生素A、E和C。这些发现表明，可食用江蓠具有很高的营养价值，可作为人类和动物营养的来源。
