Variations in the chemical composition of Costaria costata during harvest
Variations in the chemical composition of Costaria costata during harvest
复制标题
收获期间木槿花化学成分的变化
DOI：
10.1007/s10811-014-0253-2
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发表时间：
2014
影响因子：
3.3
通讯作者：
X. Fu
中科院分区：
文献类型：
--
作者：
Xin Wu;Gaoge Wang;X. Fu
对采收期3个月内采集的鸡冠花的化学成分变化进行了分析。干藻中含有水分(4.94-10.50%)、灰分(29.25-38.19%)、蛋白质(9.77-18.15%)、脂肪(0.60-2.21%)、粗纤维(4.45-5.68%)、藻酸盐(22.49-29.13%)、褐藻黄质(0.07-0.32 mg·g-−-1)、多酚(1.579-4.796 mg-g-−-1)。分析了6种矿质元素，其中最丰富的是钙(6.64~11.56 mg g−1)和镁(7.02~7.92 mg g−1)。脂肪酸组成分析表明，多不饱和脂肪酸棕榈油酸和亚油酸在5、6月份含量较高，而饱和脂肪酸棕榈酸在7月份含量较高。氨基酸组成分析表明，天冬氨酸、谷氨酸、甘氨酸和丙氨酸含量最高。5、6、7月份藻酸盐中甘露糖酸与古龙酸的比值分别为2.57、2.17、1.66。海藻酸盐凝胶强度在5月、6月和7月分别为1,449.0、1,935.0和980.5 mg/cm−1。本研究的结果表明，c.COSTATA是一种极好的资源，在化工、食品、化妆品和制药等工业领域有着广泛的应用。
In this study, variations in the chemical composition ofCostaria costatacollected during 3 months of the harvest period were analyzed. Moisture (4.94–10.50 %), ash (29.25–38.19 %), protein (9.77–18.15 %), lipid (0.60–2.21 %), crude fiber (4.45–5.68 %), alginate (22.49–29.13 %), fucoxanthin (0.07–0.32 mg g−1), polyphenol (1.579–4.796 mg g−1) were analyzed from dried alga. Six mineral elements were analyzed and the most abundant were calcium (6.64–11.56 mg g−1) and magnesium (7.02–7.92 mg g−1). Analysis of fatty acid composition indicated that the polyunsaturated fatty acids palmitoleic acid and linoleic acid were abundant in May and June, whereas the saturated fatty acid palmitic acid was abundant in July. Amino acid composition was also analyzed and the most abundant amino acids were aspartic acid, glutamic acid, glycine, and alanine. The ratio of mannuronic acid to guluronic acid of alginate was 2.57, 2.17, and 1.66 in May, June, and July, respectively. The gel strength of alginate was 1,449.0, 1,935.0, and 980.5 g cm−1in May, June, and July, respectively. The results of this study indicate thatC. costatais an excellent resource that provides extensively applications in the industrial areas of chemicals, food, cosmetics, and pharmacy.