蚕豆辣酱的研制

以蚕豆和辣酱为主要原料,利用米曲霉AS3.042、黑曲霉AS3.350、根霉Q303等多种菌种的协同作用,在温度先高后低的条件下固态发酵,所得产品与单一菌种发酵相比,酱香、酯香浓郁,鲜味有明显的提高,氨基酸氮提高了30.2%、全氮提高了11.2%。     

大豆蛋白纤维/棉混纺筒子纱漂染技术

介绍大豆蛋白纤维／棉(50：50)混纺纱染特浅色产品和漂白产品的工艺技术。采用双氧水-纯碱练漂一浴，再经还原漂复漂前处理可染特浅色，中深色可以不经还原复漂，漂白产品应再用增白剂增白。染色采用双活性基活性染料，染色时要控制好工艺条件，固色碱应分批加入，防止色花，整个加工温度不能超过98℃，以防纱线变质。     

热处理对大豆蛋白水解物的影响

研究了在pH渐变条件下Alcalase与黑曲霉酸性蛋白酶复合水解大豆蛋白反应中热处理对大豆蛋白水解物的影响。结果表明,大豆蛋白经90℃、10min热处理,其水解度由未经热处理的26％提高到30.2％,所得水解物中分子量小于1350的寡肽占71.2％。     

影响豆奶浆液可溶性固形物得率因素的研究

研究了大豆热钝化工艺条件以及大豆浸泡工艺条件与豆奶浆液可溶性固形物得率的关系。通过正交实验发现,热钝化温度、浸泡温度、浸泡时间对豆奶浆液可溶性固形物得率影响较大。最佳的工艺条件是热钝化温度95℃、热钝化时间30min、浸泡时间5h、浸泡温度20℃。     

大豆蛋白纤维/棉混纺织物的抗折皱性

通过对大豆蛋白纤维棉混纺织物抗折皱性能的测试,分析研究纱线混纺比、捻度、线密度和纱线结构与大豆蛋白纤维棉混纺织物性能的关系,确定体现大豆蛋白纤维产品优良性能的最佳工艺参数,为以后的研究和生产提供参考。     

酱醋渣的综合利用

利用酱渣、醋渣等下脚料添加畜血、麸皮、脱毒棉籽饼，经生化处理及发酵生产优质蛋白饲料。在扩试中对发酵温度、湿度、pH值、总氮、氨基酸态氮等进行全过程监测，氨基酸态氮48h可达1．01g／100g。产品呈咖啡色，有发酵香气，无异味，含水量在12％以下，粗细度以过32目筛为标准，细菌总数〈5000个／g。并含有18种氨基酸。     

Effect of Soybean Varieties and Growing Locations on the Physical and Chemical Properties of Soymilk and Tofu

ABSTRACT: Soybean varieties and growing location greatly affected the protein content and color of soymilk and the protein content and yield of tofu ( P < 0.05). Protein content of soybeans was the most important affecting factor for the qualities of soymilk and tofu. There were significant correlations between the protein contents of soybeans and soymilks ( P < 0.05). There were also significant correlation between the soybean protein and the total solid content of soymilk (P < 0.05). Tofu moisture content had significant effect on the hardness and yield of tofu (P < 0.05). The correlation between soybean protein and tofu yield was significant at P < 0.05. The protein content and yield of tofu can be predicted by analyzing soybean protein.     

Effect of grazing and fat supplementation on production and reproduction of Holstein cows

The objective of this trial was to investigate the effects of feeding a soybean oil refining by-product (SORB), made up mainly of sodium salts of long-chain fatty acids, on reproductive performance and productivity of 36 early lactation Holstein cows managed in a free-stall barn or on annual rye-ryegrass pasture. In this 2 × 2 factorial arrangement of treatments, cows consumed 0 or 0.5 kg/d of SORB as part of a total mixed ration for barn cows or as part of a grain supplement fed to cows on intensively, rotationally stocked pasture. Blood was sampled 3 times weekly and plasma was measured for progesterone to assess ovarian activity. Estrus activity was recorded using the HeatWatch estrus detection system. Although average 14-wk milk production (37.2 kg/d) was not different among treatments, barn cows had more persistent lactations than did grazing cows. Cows housed in the barn lost less body weight and returned to initial body weight sooner and had lower mean concentrations of plasma nonesterified fatty acids (464 vs. 261 mEq/L) than those managed on pasture. The milk fat of cows on pasture contained greater proportions of conjugated linoleic acid and linolenic acid but a corresponding 0.22 percentage unit decrease in milk fat concentration (3.39 vs. 3.16%). Cows managed on pasture had greater peak concentrations of plasma progesterone during the first estrous cycle. Cows managed on pasture and fed SORB had the greatest accumulation of plasma progesterone over the 14 wk of the study (SORB × housing interaction). These cows experienced the most mounts during their first estrus (9.3) and pregnancy rate was also greatest for this treatment (62.5%). Feeding SORB did not affect production of milk, fat, or protein. Loss of body condition was less in cows fed SORB. Ruminal fluid concentration of propionate increased and ruminal pH decreased in cows fed SORB. A lower proportion of fatty acids less than 18 carbons in length was found in the milk fat of cows fed SORB, thus indicating lower de novo synthesis of fatty acids. Higher proportions of C18:2n-6 and conjugated C18:2 were found in the milk fat of cows fed SORB. Based on concentrations of plasma progesterone, cows fed SORB experienced their first ovulation earlier (26.7 vs. 42.4 d postpartum) than did cows not supplemented with SORB. Neither housing system nor SORB supplementation influenced detection of first estrus (50.5 d) or the mean length of each estrus period (447 min).     

超声复合碱处理对大豆分离蛋白乳化性影响及其对表没食子儿茶素没食子酸酯保护作用

为了改善大豆分离蛋白(soybean protein isolate,SPI)的乳化性以及防止表没食子儿茶素没食子酸酯((-)-epigallocatechin gallate,EGCG)的氧化降解,本研究采用超声处理、碱处理、超声复合碱处理对SPI进行改性,通过傅里叶变换红外光谱、荧光光谱、荧光猝灭分析以及巯基含量、...     

大豆油和预乳化大豆油对金线鱼鱼糜凝胶品质的影响

为了改善鱼糜制品的品质,研究2?mL/100?g大豆油和10?mL/100?g预乳化大豆油（即经乳清分离蛋白或酪蛋白酸钠预乳化的大豆油乳液,其中含2?mL/100?g大豆油）对金线鱼鱼糜凝胶性能、微观结构和感官特性的影响,比较大豆油和大豆油乳液的添加对鱼糜凝胶品质的影响。结果表明,直接添加2?mL/100?g大豆油后金线鱼鱼糜凝胶的白度增加,但凝胶质构特性较差,持水性下降,蒸煮损失率增加（P＜0.05）,凝胶基质中油滴分布不均匀,有明显的油滴聚集,其油滴直径主要分布在0.10～0.175?μm,凝胶三维网络结构孔径大,油脂的氧化性显著增加（P＜0.05）;添加10?mL/100?g大豆油乳液后,鱼糜凝胶的白度、持水性和结合水含量增加,蒸煮损失率下降（P＜0.05）,且对凝胶质构和油脂氧化性的影响不显著（P＞0.05）,凝胶制品的感官品质明显改善,预乳化的细小油滴在凝胶基质中均匀分布,油滴直径小于0.10?μm,凝胶三维网络结构的孔径小,表面比较光滑。因此,经乳蛋白预乳化大豆油可以有效改善金线鱼鱼糜的凝胶性能和风味,为新型鱼糜制品的开发提供了参考。