分子蒸馏及其在多不饱和脂肪酸中的应用

阐述了分子蒸馏的基本原理及其主要特点。介绍了分子蒸馏在不饱和脂肪酸方面的应用研究成果。     

微波技术在食品工业中的应用

主要介绍了微波加热的原理、特点及微波技术在食品加工方面的应用及发展前景。     

食品工艺学实验教学的探索

分析了目前我校食品工艺学实验教学中的一些现状，并提出了今后在教学过程中的实践方案。着重要求学生在实验课中学会设计实验方案，掌握实验技能，从而提高学生分析问题和解决问题的能力。     

Effect of microwaves on rice quality

The effect of microwave radiation on rice quality was investigated using an industrial continuous microwave oven. Effects of microwave treatment, packaging method and storage time on rice quality during storage were assessed. Water content, free fatty acid content and protein content were reduced but the blue value (BV) of rice and the sensory quality of cooked rice increased as microwave-energy consumption increased. Qualities of both microwave-treated and untreated rice changed during storage, but the changes were less in the treated rice sample. Differences in the protein content, fat content and total sugar content between the microwave-treated and untreated rice were significant at the beginning of storage but not after storage for more than 120 days. Variance analysis showed that rice storage qualities were significantly affected by treatment methods and storage time while packaging methods had no significant effect on any of the qualities.     

Interaction between flaxseed gum and meat protein

Thermal properties, dynamic rheological properties, texture and microstructure of salt-soluble meat protein and flaxseed gum (SSMP-FG) mixtures were investigated. Two transitions, 57.0 °C (T_SSMP1) and 63.2 °C (T_SSMP2), were observed for SSMP without FG with differential scanning calorimetry (DSC). Addition of 2% FG to SSMP increased T_SSMP1 and T_SSMP2 by 1.9 °C and 5.9 °C, respectively. Two transitions, 53 °C (T_SSMP1′) and 75 °C (T_SSMP2′), were also observed for SSMP without FG with dynamic rheological measurement. Addition of 2% FG to SSMP increased T_SSMP1^′ and T_SSMP2^′ by 9 °C and 14 °C. These results indicated that addition of FG increased thermal stability of SSMP. Addition of FG also increased the storage modulus G′, gel strength, decreased syneresis, and changed the microstructure of SSMP gels with texture analyser and scanning electron microscope (SEM), respectively, suggesting that an interaction between FG and SSMP may have occurred. The results of addition of destabilizer to SSMP gels indicated that electrostatic forces seemed to be the main force involved in the formation and stability of protein–polysaccharide gel.     

Antioxidant activities of crude tea polyphenols, polysaccharides and proteins of selenium-enriched tea and regular green tea

The crude tea polyphenols, polysaccharides and proteins of regular green tea and Se-enriched green tea were investigated in vitro for antioxidant activities by auto-oxidation test (AAPH) and α,α-diphenyl-β-picrylhydrazyl (DPPH) radical scavenging method. Results showed that crude tea polyphenols of Se-enriched green tea provided the highest antioxidant activity by DPPH assay and the antioxidant activity was decreased in the order: crude tea polyphenols > crude tea proteins > tea polysaccharides. The crude protein of Se-enriched green tea was found to exhibit the highest antioxidant activity by AAPH method and the antioxidant activity was decreased in the order: crude tea proteins > tea polyphenols > tea polysaccharides. Tea polyphenols and tea polysaccharides of Se-enriched green tea presented significantly higher antioxidant activities than that of regular green tea. No significant difference of antioxidant activities was found between crude tea proteins of Se-enriched green tea and regular green tea. The combinations of Se with tea polyphenols and tea polysaccharides were responsible for the higher antioxidant activities of Se-enriched green tea than regular green tea.     

钙基固体碱法制备生物柴油工艺的研究

研究了钙基负载型固体碱制备生物柴油的酯交换反应,通过正交试验得出菜籽油制备生物柴油的最佳工艺条件为:反应温度70 ℃、反应时间6 h、催化剂用量4%,醇油摩尔比8∶1,在最优条件下,生物柴油转化率97.62%.     

用西门子S7-300实现三台过滤机的自动化交互控制

介绍了通过使用西门子PLC、WINCC、PROFIBUS DP,实现对三台过滤机的自动化交互控制.     

纤维素酶在棉织物抛光工艺中的应用

探讨应用纤维素酶对棉织物进行抛光整理的工艺.分析了影响纤维素酶抛光效果的各种因素,进行了酶用量、温度、pH值、处理时间等对织物减量率、强力下降率的影响试验.结果表明:棉织物经纤维素酶抛光后其手感、悬垂性等均得到了不同程度的改善,提高了棉织物的服用性能,纤维素酶对棉织物进行抛光整理是可行的.     

鱼肉面条的研制

本文研究了以皮氏叫姑鱼，淀粉和面粉为主要原料，制作速冻鱼肉面条的工艺。鱼肉面条最佳配比为鱼肉69．58％，玉米淀粉16.78％，AA－2粉8.39％，藻酸钠0.1％，小苏打0．05％,味精1.0％，鸡蛋清4．0％，生姜粉0．1％。鱼肉面条中蛋白质占25．39％，脂肪0．27％，盐分1．31％，水分55．09％。