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用常规方法测定阳荷主要营养成分含量。水分测定用直接干燥法,灰分测定用灰化法,蛋白质测定用分光光度法,粗脂肪测定是索氏提取法,粗纤维测定用酸碱水解法,维生素C测定用滴定法,总糖测定用苯酚硫酸法,总酸测定酸碱滴定法,氨基酸测定用全自动氨基酸分析仪法。结果表明:铜仁市售阳荷水分的含量为86%、灰分的含量为1.2 g/100g、蛋白质的含量为9.8 g/100g、粗脂肪的含量为4.12 g/100g、粗纤维的含量为16.94 g/100g、总糖的含量为2.3 g/100g、维生素C的含量为0.029 g/100g、总酸度为0.26%。用氨基酸分析仪测定出有17种氨基酸,其中必需氨基酸有7种,其总含量为3.469 g/100g,非必需氨基酸总含量为5.603g/100g,总的氨基酸含量为9.072 g/100g,其中谷氨酸含量最高。可知,该地阳荷营养价值丰富,具有一定的开发与利用价值。 相似文献
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野生柳叶蜡梅叶营养成分分析 总被引：1，自引：0，他引：1
以黄山市休宁县齐云山野生香风茶为研究对象,应用高效液相色谱、原子吸收光谱以及其他常规化学分析技术测定其中成分。结果为:蛋白质、粗脂肪含量分别为27．86％、31．2％,粗纤维、可溶性总糖分别为11．7％、7．26％,水分和灰分分别为7．467％、7．15％;游离氨基酸总量为1．12％;维生素B1、B2和维生素C分别为0．1001mg/100g、1．301mg/100g、33．6mg/100g;矿质元素Ca、Mg分别为300mg/100g、340mg/100g,Fe、Zn和Se等分别为15．37mg/100g、8．11mg/100g及0．0135mg/100g。 相似文献
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测定了野生猴头菌子实体中粗蛋白,粗脂肪、微量元素、维生素及氨基酸等几种主要化学成分,测定结果表明野生猴头菌中蛋白含量高达5.67%,是目前最畅销食用菌蛋白含量的4倍;粗脂肪含量为3.14%,属于低脂肪菌类;微量无素含量均高于当今市场畅销菌;维生素含量丰富,其中维生素C每百克中舍698毫克,远高于一般食用菌. 相似文献
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测定了野生猴头菌子实体中粗蛋白，粗脂肪、微量元素、维生素及氨基酸等几种主要化学成分，测定结果表明：野生猴头菌中蛋白含量高达5．67％，是目前最畅销食用菌蛋白含量的4倍；粗脂肪含量为3．14％，属于低脂肪菌类；微量无素含量均高于当今市场畅销菌；维生素含量丰富，其中维生素C每百克中含698毫克，远高于一般食用菌． 相似文献
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目的：分析测定皇竹草的营养成分及含量,为其推广种植提供科学依据.方法：粗蛋白含量测定采用凯氏定氮法;粗脂肪含量测定采用国标《饲料中粗脂肪的测定》（GB/T 6433-2006/IS0 6492：1999）进行;粗纤维含量测定采用GB/T 6434-94方法;灰分测定依据GB6438-92进行;无氮浸出物％=100％-（水分＋灰分＋粗蛋白质＋粗脂肪＋粗纤维）％.钠,钾,钙,镁等元素的含量采用火焰原子吸收分光光度计测定.结果：测得粗蛋白含17.96％,粗脂肪含2.74％,粗纤维含23.26％,无氮浸出物含45.19％,灰分占5.25％.结论：皇竹草营养成分含量高,作为饲料有较高的利用价值. 相似文献
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分析测定了三叶木通果中Vitamin C，精蛋白质，还原糖和总糖含量，以及氨基酸组成和含量，结果表明：100g鲜果肉中Vitamin C,粗蛋白质，还原糖和总糖的含量分别为108mg,1.07g,10.2g和14.9g；所测17种氨基酸总量为818．5mg/100g，其中含有7种人体必需氨基酸为298．4mg/100g，占氨基酸总量的36．5％。 相似文献
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《大连大学学报》2016,(6):66-70
采用生化手段对香螺(湿重:136187 g)肌肉中水分、粗蛋白、灰分、粗脂肪含量及脂肪酸、氨基酸的组成与含量进行了检测与分析。结果表明:香螺肌肉一般营养成分中水分含量77.56%、粗蛋白含量60.52%(干)、灰分6.27%、粗脂肪7.29%。共检测到17种脂肪酸和17种氨基酸,其中,17种脂肪酸中含有5种饱和脂肪酸(SFA)和12种不饱和脂肪酸(UFA)。在不饱和脂肪酸中有4种单不饱和脂肪酸(MUFA)和8种多不饱和脂肪酸(PUFA),DHA和EPA的总量为18.2%。17种氨基酸中,谷氨酸(Glu)含量最高,占总量10.82%,其次依次为甘氨酸(Gly)、天冬氨酸(Asp)与精氨酸(Arg);色氨酸(Trp)含量最低占总量0.41%。呈味酸与必需氨基酸含量分别占氨基酸总量的54.33%和44.66%,必需氨基酸指数为63.89。综上,香螺为一种营养丰富、价值较高的海味佳品。 相似文献
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光唇鱼肌肉营养成分与品质的评价 总被引：3，自引：0，他引：3
对光唇鱼（Acrossocheilus fasciatus）的合肉率和肌肉营养成分进行分析,结果表明光唇鱼的含肉率平均为59．59±2．81％,肌肉（新鲜）的水分含量77．69±1．02％,粗蛋白含量19．21±0．02％,粗脂肪含量0．54±0．05％,灰分1．01±0．03％;脂肪酸为12种,饱和脂肪酸（SFA）4种,不饱和脂肪酸（UFA）8种,其中单不饱和脂肪酸（MUFA）4种,多不饱和脂肪酸（PUFA）4种;肌肉中含有17种氨基酸,总量为69．28％（干重百分比）,7种人体必需氨基酸总量是28．98％,4种鲜味氨基酸含量为28．01％,必需氨基酸指数（EAAI）是59．56：测得矿物元素8种。 相似文献
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Three cooking methods, namely boiling, steaming, and stir-frying for 5 to 10 min, were used to evaluate the effect on nutrient
components, free amino acids, l-ascorbic acid, total phenolic contents, and antioxidant capacities of bamboo shoots (Phyllostachys praecox). Results showed that boiling and stir-frying had a great effect on the nutrient components and they decreased the contents
of protein, soluble sugar, and ash, and caused a great loss in the total free amino acids (decreased by 38.35% and 34.86%,
respectively). Significant differences (P<0.05) in free amino acids were observed in the samples cooked by different methods. Stir-fried bamboo shoots had a high fat
content which increased by 528.57% because of the addition of edible oil. After boiling, the L-ascorbic acid and total phenolic
contents were significantly reduced, while steaming increased total phenolic content by 3.98% and stir-frying well-preserved
L-ascorbic acid (78.87% of its previous content). Results of the antioxidative property study showed that stir-frying could
increase antioxidant capacities of bamboo shoots. It is concluded that stir-frying is more suitable for bamboo shoots because
it could obtain the maximum retention of antioxidant capacities. 相似文献
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对比分析黑木耳在茶梗、茶枝屑不同基质配方上的菌丝生长、出菇表现、产量及营养成分。结果表明:黑木耳在各基质配方上均能正常生长、出菇,除配方CG1(78.5%茶梗)、CZ1(78.5%茶枝屑)产量及生物学效率低于对照CK(78.5%杂木屑)外,其他均高于CK,其中配方CZ2(48.5%茶枝屑)最高,生物学效率比CK高出10.09%;含茶枝屑配方栽出的黑木耳粗蛋白、粗脂肪、粗纤维、Ca、Fe、Zn、总氨基酸、必需氨基酸等营养成分均高于CK,而含茶梗配方栽出的黑木耳则是粗蛋白、粗多糖、灰分高于CK。综上所述,茶梗、茶枝屑作为代料栽培黑木耳可行,茶枝屑代料栽培出的黑木耳总体品质要优于茶梗代料。 相似文献
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Hong-gang Tang Li-hong Chen Chao-geng Xiao Tian-xing Wu 《Journal of Zhejiang University. Science. B》2009,10(2):154-158
We investigated the fatty acid profiles of muscle from large yellow croaker (Pseudosciaena crocea R.) of different age. One- and two-year-old fish were cultured in floating net cages and sampled randomly for analysis. Moisture,
protein, lipid and ash contents were determined by methods of Association of Analytical Chemist (AOAC) International. Fatty
acid profile was determined by gas chromatography. Crude protein, fat, moisture and ash contents showed no significant differences
between the two age groups. The contents of total polyunsaturated fatty acids and docosahexaenoic acid (DHA) were significantly
higher and eicosapentaenoic acid (EPA) content was significantly lower in the two-year-old large yellow croaker than in the
one-year-old (P<0.05). No significant differences were observed in the contents of total saturated fatty acids and monounsaturated fatty
acids, or the ratio of n-3/n-6 fatty acids among the large yellow croakers of the two age groups. We conclude that large yellow croakers are good food
sources of EPA and DHA.
相似文献
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云南烤烟评吸质量与化学成分的关系研究 总被引：46，自引：0，他引：46
分析云南烤烟总糖、还原糖、总氮、烟碱等化学成分的含量,并对香气质、香气量、浓度、余味等评吸质量进行专家评吸打分。化学成分与评吸质量的相关分析表明,与评吸质量关系密切的化学成分主要为糖组分和含氮化合物。香气质、香气量、评吸总得分与化学成分的逐步回归分析表明,化学成分对香气质作用的大小为:挥发碱>总糖>总氮>总灰分,对香气量作用的大小为:总灰分>总糖,对总体评吸质量的作用大小为:总糖>总氮>总灰分>蛋白质>还原糖>钾。 相似文献
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Hong-gang TANG Li-hong CHEN Chao-geng XIAO Tian-xing WU 《Journal of Zhejiang University. Science. B》2009,10(2)
We investigated the fatty acid profiles of muscle from large yellow croaker (Pseudosciaena crocea R.) of different age.One- and two-year-old fish were cultured in floating net cages and sampled randomly for analysis.Moisture,protein,lipid and ash contents were determined by methods of Association of Analytical Chemist (AOAC) International.Fatty acid profile was determined by gas chromatography.Crude protein,fat,moisture and ash contents showed no significant differences between the two age groups.The contents of total polyunsaturated fatty acids and docosahexaenoic acid (DHA) were significantly higher and eicosapentaenoic acid (EPA) content was significantly lower in the two-year-old large yellow croaker than in the one-year-old (P<0.05).No significant differences were observed in the contents of total saturated fatty acids and monounsaturated fatty acids,or the ratio of n-3/n-6 fatty acids among the large yellow croakers of the two age groups.We conclude that large yellow croakers are good food sources of EPA and DHA. 相似文献
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三叶木通果中主要营养成分含量的测定 总被引：1，自引：0，他引：1
分析测定了三叶木通果中VitaminC、粗蛋白质、还原糖和总糖含量 ,以及氨基酸组成和含量 .结果表明 :1 0 0g鲜果肉中VitaminC、粗蛋白质、还原糖和总糖的含量分别为 1 0 8mg ,1 .0 7g ,1 0 .2g和 1 4 .9g ;所测 1 7种氨基酸总量为81 8.5mg 1 0 0g ,其中含有 7种人体必需氨基酸为 2 98.4mg 1 0 0g ,占氨基酸总量的 36 .5 % . 相似文献
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以蛋白质提取率为主要指标,对花粉的发酵破壁提取和酶法破壁提取进行了研究．实验表明,当花粉加2．5倍水过胶体磨细化后,采用酶法提取工艺,在温度为45℃,pH为4．6的条件下,酶解30h,然后在60℃下浸泡10h,蛋白质提取率最高,效果最好．通过对花粉运动休闲饮料的调配试验,当花粉母液为20％、氯化钠为2％、蛋白糖为0．04％、柠檬酸为0．1％时,饮料的品质最佳． 相似文献
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日粮添加蜂花粉对蛋品质的影响 总被引：1，自引：0，他引：1
试验取180日龄罗曼褐壳蛋鸡168羽,随机分为2组,对照组饲喂基础日粮,试验组在基础日粮中添加1.5%蜂花粉,于212日龄每组随机取鸡蛋30枚,测定平均蛋重、蛋壳厚度、蛋形指数、蛋黄的色泽,鸡蛋的粗蛋白、粗脂肪、胆固醇及部分微量元素的含量,研究蜂花粉对蛋品质的影响.结果:试验组蛋壳厚度增厚9.22%(P＜0.01),蛋黄重量提高6.89%(P＜0.05);蛋黄的色度显著高于对照组(P＜0.05),胆固醇含量降低29.18%,差异极显著(P＜0.01).微量元素含量差异不显著(P＞0.05).结果显示:蜂花粉可改善蛋品质. 相似文献