花色保健豆酱的研制及活性成分 (有效成分)测定

花色保健豆酱是在黄豆酱中添加蜂胶及其它辅料，经乳化，增稠、匀浆，胶磨等工艺加工而成，本系列产品具有酱酯香味浓郁，风味各异，鲜美可口之特点，其活性成分总黄酮含量达50-60mg/100g保健豆酱，它是一种卫生，方便的保健调味品。     

Stability of protein‐stabilised β‐carotene nanodispersions against heating,salts and pH

BACKGROUND: Milk proteins are used in a wide range of formulated food emulsions. The stability of food emulsions depends on their ingredients and processing conditions. In this work, β‐carotene nanodispersions were prepared with selected milk‐protein products using solvent‐displacement method. The objective of this work was to evaluate the stability of these nanodispersions against heating, salts and pH. RESULTS: Sodium caseinate (SC)‐stabilised nanodispersions possessed the smallest mean particle size of 17 nm, while those prepared with whey‐protein products resulted in larger mean particle sizes (45–127 nm). Formation of large particles (mean particle size of 300 nm) started after 1 h of heating at 60 °C in nanodispersions prepared with SC. More drastic particle size changes were observed in nanodispersions prepared with whey protein concentrate and whey protein isolate. The SC‐stabilised nanodispersions were fairly stable against Na⁺ ions at concentrations below 100 mmol L^?1, but drastic aggregation occurred in ≥ 50 mmol L^?1 CaCl₂ solutions. Aggregation was also observed in whey protein‐stabilised nanodispersions after the addition of NaCl and CaCl₂ solutions. All sample exhibited the smallest mean particle size at neutral pH, but large aggregates were formed at both ends of extreme pH and at pH around the isoelectric point of the proteins. CONCLUSION: The nanodispersions prepared with SC were generally more stable against thermal processing, ionic strength and pH, compared to those prepared with whey proteins. The stable β‐carotene nanodispersions showed a good potential for industrial applications. Copyright © 2008 Society of Chemical Industry     

牛奶/大豆蛋白纤维混纺织物的染整工艺

介绍了牛奶／大豆蛋白纤维的特点及染整工艺。小样试验中，测试了强碱、pH值对织物的影响，比较了酶退浆、低碱煮练剂DKB退浆、Na2CO3退浆的退浆效果；探讨了双氧水漂白中温度、H2O2浓度、还原剂漂洗等工艺参数；列举了牛奶／大豆蛋白纤维大样试验的工艺流程和具体工艺参数，包括烧毛、漂白、定形、染色和特种整理（抗皱、柔软）等工序。     

冷冻型乳酸发酵豆奶的研制

以豆浆为培养基 ,接种保加利亚乳杆菌和嗜热链球菌工作发酵剂 ,混合发酵 ,再将富含活性菌的发酵豆乳按比例替代冰淇淋中的乳制品 ,经老化、凝冻、速冻的方法制成冷冻型发酵豆奶。     

韩式面酱的加工工艺

通过韩式面酱与甜面酱加工原料、设备、配方及加工工艺进行比较，结果表明：韩式面酱在口感、质地上优于甜面酱。     

发酵肉中有益菌的分离筛选研究

以MRS培养基和番茄汁琼脂培养基为基础培养基,从自然发酵的咸肉、咸鱼、香肠中分离得到五个菌株,均为球状菌。经过进一步测试表明:五个菌株在pH5.0左右或低于5.0时生长良好;五株菌在2%～6%的NaCl浓度内生长较适宜,其中有两株菌在10%NaCl的环境中仍能生长,五株菌的生长适宜温度范围在30℃～40℃之间,但在35℃培养时生长最好。基本都能符合肉品发酵剂的要求。     

大豆素火腿肠生产工艺的探讨

采用大豆组织蛋白、魔芋精粉、蛋白粉、植物油等基本原料,代替猪肉、鸡肉等动物肉,进行制作素火腿肠的试验研究。介绍了试验的基本配方及生产工艺、流程和步骤,着重分析了制作过程中关键点的控制要求,并且评价了素火腿肠试制品的感官特性、营养保健性,并指出今后改进的思路。     

复合酶解法制备功能性大豆多肽的研究

利用中性蛋白酶和枯草杆菌对大豆分离蛋白进行复合酶解,首先通过单因素和正交实验确定了中性蛋白酶酶解的最佳水解条件为：底物浓度4%,反应温度50℃,时间4h,pH8．5,酶用量6％,水解度(DH)可达21．46％；再经过枯草杆菌发酵36h后,水解度可迭32．06％,苦味明显降低。     

两种工艺拐枣酒抗氧化成分及活性比较

以拐枣果梗为原料,制备拐枣露酒与发酵酒,测定拐枣酒中营养成分含量,并采用氧自由基吸收能力（ORAC）、铁离子还原能力（FRAP）、2,2'-联氨-双（3-乙基苯并噻唑啉-6-磺酸）二铵盐（ABTS）与1,1-二苯基-2-苦肼基（DPPH）自由基清除能力4种方法对其抗氧化活性进行测定,旨在比较两种工艺拐枣酒抗氧化成分含量及抗氧化活性。结果表明,拐枣发酵酒中总多酚、总黄酮、抗坏血酸含量均高于拐枣露酒,拐枣露酒中具有较高的糖含量,发酵酒中残糖量少。两种工艺拐枣酒均具有很强的抗氧化能力,其抗氧化能力与之含有的总黄酮、总多酚及抗坏血酸含量呈显著正相关（P＜0.05）。拐枣酒的ORAC值在6.49～14.69 mmol/L之间,FRAP值在3.59～11.71 mmol/L之间,对ABTS、DPPH自由基的清除率均＞90%,半抑制浓度（IC50）值分别在7.10～20.30 μg/mL、23.40～52.30 μg/mL之间。拐枣露酒与拐枣发酵酒相比,发酵酒中营养成分含量更高,品质更佳,抗氧化能力更强。     

陶瓷膜在谷氨酸发酵液除菌过程中的应用

对陶瓷膜在谷氨酸发酵液除菌过程中的应用进行了实验研究。实现了除菌、洗菌、浓缩过程连续化操作 ,浓缩倍数达到 2 5倍。选择了合适孔径的陶瓷膜 ,确定了膜的操作条件和再生方式。当加水量为发酵液量的 0 1倍时 ,水洗后谷氨酸收率 >99 7%。除菌率 >99 98%。