Nutritional evaluation of ethanol extracted Madhuca (Madhuca butyraceae) seed flour

Defatted Madhuca flour is toxic due to the presence of saponins. Alcohol, 20–95%, was used to remove the saponins and it was found that two stage 60% ethanol extraction removed 90% of the saponins present in the flour. Rat feeding trials using the ethanol extracted flour at 10 and 15% protein levels yielded PER of 0.8 and 1.5 respectively and did not show any ill effects other than minor cytoplasmic vacuolation in liver and kidney in histological studies.     

菜肴脂肪的准确计算

计算菜肴营养成分的基本方法 ,一直以来采用的是菜谱计算法 ,而菜肴经烹饪后的营养成分是有变化的 ,菜肴烹饪时 ,存在着食用油的吸着、吸收及原料本身脂肪的损失现象 ,应充分考虑这些可变因素 ,计算出更为准确的菜品成分量     

磷酸化试剂在食品蛋白质改性中的应用

介绍用于改性食品蛋白质的几种常用的磷酸化试剂、各自的反应机理及各种改性方法对蛋白质功能特性和营养特性的影响 .     

Composition and nutritive value of cormels of Colocasia esculenta (L.) Schott

The nutritional quality of the cormels of Colocasia esculenta (L.) Schott cultivar ‘Guavir’ was determined chemically and biologically in feeding experiments with weanling rats. The contents of starch and unavailable carbohydrates (cellulose, hemicellulose and pectin) were 54 and 15% of the dry matter respectively. Lipid accounted for less than 1% of the dry matter. Palmitic, oleic and linoleic acids were the main fatty acids in the lipids, with linoleic acid predominating. The content and fatty acid composition of the individual lipids was examined. Crude protein amounted to 10.4% of the dry matter. This protein was low in the sulphurcontaining amino acids and tryptophan, but contained adequate levels of the other essential amino acids. Diets containing raw cormel meal gave severely depressed net protein utilisation (NPU) and total nitrogen and carbohydrate digestibility when fed ad libitum to weanling rats. Both NPU and nitrogen and carbohydrate digestibility improved when the cormel meal was cooked prior to inclusion in the diets but such diets still did not support growth in weanling rats.     

浅述菜肴的营养价值

随着人们"吃好"意识的增强,菜肴的营养价值日益成为人们就餐关注的重点.菜肴的营养价值是评价菜肴质量的重要指标,合理地选择主原料,科学地搭配辅助原料,适当地选用调味料,再加上适宜的烹调方法,可以烹制出营养丰富的菜肴.菜肴的营养价值可用科学估算法或精确分析法来评价.     

大别山野生四叶参营养成分分析

测定大别山野生四叶参中水分、脂肪、总糖、蛋白质、氨基酸、常量元素和微量元素含量.采用恒重法测定水分含量;索氏提取法测定脂肪含量;斐林试剂热滴定法测定总糖含量;全自动凯氏定氮法测定蛋白质含量;柱前衍生反相高效液相色谱法测定氨基酸含量;原子吸收分光光度法测定Ca、Mg、Cu、Zn、Fe、Mn、Se含量;可见分光光度法测定P含量,测定结果显示:四叶参中水分、粗脂肪、总糖、粗蛋白质含量分别为6.55、3.31、54.83、9.15 g/100g;氨基酸至少有12种,总氨基酸含量为5.15 g/100 g,必需氨基酸含量为0.70 g/100 g.微量元素Cu、Zn、Fe、Mn、Se的含量分别为:1.19、3.64、20.01、22.09、6.82 mg/100 g.常量元素Ca、Mg、P含量分别为:0.15、0.11、0.96 g/100g.大别山野生四叶参营养成分丰富,具有广阔的开发应用前景.     

United States menhaden oil could save billions in U.S. health care costs and improve IQ in children

The United States menhaden oil annual production is sufficient to supply all of the recommended long chain Omega‐3s for Americans over 55 with coronary heart disease (CHD) and pregnant and lactating women. According to a recent study, the utilization of preventable intake levels could potentially save up to $1.7 billion annually in hospital costs alone. In addition, the remaining oil could be used to support a culture of enough Atlantic salmon to provide every pregnant and lactating woman in the U.S. with 8‐12 ounces of fish per week, as recommended by the Food and Drug Administration (FDA), throughout the duration of pregnancy and lactation. Based on the FDA's quantitative assessment, this may result in a net increase of IQ by 5.5 points in children and improve their early age verbal development.     

铜基营养杀菌剂的合成工艺

铜基营养杀菌剂是一种可湿性粉剂,既可杀灭病菌又可为作物提供一定的微量营养元素。介绍了其研制原理和方法,并在辣椒疫霉病菌上对其进行了初步的药效对比试验。在60℃~70℃条件下氢氧化钙与硫酸铜反应,投料摩尔比约为3 :4,合成碱式硫酸铜,再依次加入载体填料、配方助剂、微量营养元素,100℃5℃条件下喷雾干燥即得成品。收率在85%以上。铜基营养杀菌剂对真菌辣椒疫霉菌具有良好的抑杀作用,其药效接近美国产品Kocide 2000,明显好于传统波尔多液和国内产品甲霜铝铜,这4种药剂的有效中浓度EC50分别为48.5、47.4、83.0、65.7mg/ml。     

婴幼儿营养米粉中营养物质稳定性的研究

通过对婴幼儿营养米粉稳定性的研究,为婴幼儿营养米粉货架期的预测、确定和产品储存以及产品配方、加工技术的改进提供参考.依据化学动力原理设计试验,在温度(37±2)℃,湿度(75±5)％条件下贮藏样品6个月,以加快营养素衰减变质速度,检测各营养素指标,探究婴幼儿营养米粉中营养素的稳定性.结果表明,维生素中的VA、VC、VB...