五指山参营养成分分析

目的:测定和分析五指山参(箭叶秋葵根茎)的主要营养成分。方法:105℃常压干燥恒重法,微量凯氏定氮法,氨基酸分析仪分析法,索氏抽提法,气相色谱法,DNS法,蒽酮法,重量法,原子吸收分光光度法。结果:五指山参水分含量(14.97±0.37)%;粗蛋白含量(9.22±0.09)%,水解样氨基酸(含色氨酸)含量6.18%;粗脂肪含量(17.57±0.11)%,其中饱和脂肪酸、不饱和脂肪酸、未知脂肪酸占总脂肪酸含量分别为33.16%、42.24%、24.59%;总糖含量(55.75±0.80)%,可溶性糖含量(4.41±0.23)%,还原糖含量(2.08±0.06)%,粗纤维含量(4.35±0.19)%;钙、铁、锌、锰、铜、钾、镁含量分别为4.0mg/g、0.12mg/g、53.5μg/g、14.0μg/g、11.5μg/g、3.4mg/g、1.3mg/g。结论:五指山参营养结构较优,矿物质元素含量相对较高,尤其是钙、铁和锌,值得进一步开发和利用。

Nutritional Analysis of Abelmoschus sagittifolius

Objective.. To assay and analyze the contents of the major nutritional components of Abelmoschus sagittifolius, 105 ℃ ambient pressure constant weight method, micro Kjeldahl method, Hitachi L-8800 Amino Acid Analyzer, Soxhlet extraction method, gas chromatography, 3,5-dinitrosalieylic acid （DNS）, anthrone-sulfuric acid colori- metry, gravimetric method, and atomic absorption spectrometer were used. The moisture content was （14.97± 0. 37） %, crude protein was （9.22±0.09） %, total amino acid content was 6.18% in hydrolysate, crude fat content was （17.57±0.11） %, saturated fatty acids accounted for 33.16% of total fatty acids, unsaturated fatty acids accounted for 42.24%, unidentified fatty acids took up 24.59% of the total, total sugar content was （55.75±0.80）%, soluble sugar content was （4.41±0.23） %, reducing sugar content was （2.08±0.06） %, the crude fiber content was （4.35 ±0.19） %, calcium, iron, zinc, manganese, copper, potassium and magnesium were 4.0 mg/g, 0.12 mg/g, 53.5 μg/g, 14.0 μg/g, 11.5 μg/g, 3.4 mg/g and 1.3 mg/g respectively. With better nutritional structure, it has abundant mineral elements especially calcium, iron and zinc, valuable for further development and utilization.