油炸食品加工与贮藏过程中易发生美拉德反应、脂肪氧化反应而形成晚期糖基化产物（advanced glycation end products,AGEs）。AGEs与人类诸多慢性疾病的发生密切相关。本文研究了油炸麻花加工与贮藏过程中荧光性AGEs和羧甲基赖氨酸（Nε...油炸食品加工与贮藏过程中易发生美拉德反应、脂肪氧化反应而形成晚期糖基化产物（advanced glycation end products,AGEs）。AGEs与人类诸多慢性疾病的发生密切相关。本文研究了油炸麻花加工与贮藏过程中荧光性AGEs和羧甲基赖氨酸（Nε-（Carboxymethyl）lysine,CML）的变化规律及AGEs抑制剂（槲皮素、阿魏酸和硫胺素）对荧光性AGEs和CML的抑制特性。结果表明,荧光性AGEs和CML均随着油炸温度升高和油炸时间的延长呈上升趋势,荧光性AGEs含量为258.34-1068.90 AU/g样品,CML为1036.56-1603.72 mg/kg蛋白质;较高贮藏温度和氧气对荧光性AGEs的变化有显著（P〈0.05）影响,光照对荧光性AGEs的影响较小。随着温度升高和贮藏时间延长CML显著（P〈0.05）升高,氧气和光照对CML的形成无影响;AGEs抑制剂（槲皮素、阿魏酸和硫胺素）能够有效的抑制麻花加工过程中荧光性AGEs和CML的形成,硫胺素的抑制效果最好。因此,在麻花的加工和贮藏过程中,通过部分条件的改变如油炸温度、油炸时间、贮藏条件和加入适量的AGEs抑制剂,在一定程度上调控AGEs的形成是可行的。展开更多
There is an increasing interest in India, to search for suitable alternative fuels that are environment friendly. Thisled to the choice of Mahua Oil (MO) as one of the main alternative fuels to diesel. In this investi...There is an increasing interest in India, to search for suitable alternative fuels that are environment friendly. Thisled to the choice of Mahua Oil (MO) as one of the main alternative fuels to diesel. In this investigation, MahuaOil Biodiesel (MOB) and its blend with diesel were used as fuel in a single cylinder, direct injection and compressionignition engine. The MOB was prepared from MO by transesterification using methanol and potassiumhydroxide. The fuel properties of MOB are close to the diesel and confirm to the ASTM standards. From the enginetest analysis, it was observed that the MOB, B5 and B20 blend results in lower CO, HC and smoke emissionsas compared to diesel. But the B5 and B20 blends results in higher efficiency as compared to MOB. HenceMOB or blends of MOB and diesel (B5 or B20) can be used as a substitute for diesel in diesel engines used intransportation as well as in the agriculture sector.展开更多
基金supported by a Grant-in-Aid for Scientific Research through TEQIP, NITK, from Gov ernment of India.
文摘There is an increasing interest in India, to search for suitable alternative fuels that are environment friendly. Thisled to the choice of Mahua Oil (MO) as one of the main alternative fuels to diesel. In this investigation, MahuaOil Biodiesel (MOB) and its blend with diesel were used as fuel in a single cylinder, direct injection and compressionignition engine. The MOB was prepared from MO by transesterification using methanol and potassiumhydroxide. The fuel properties of MOB are close to the diesel and confirm to the ASTM standards. From the enginetest analysis, it was observed that the MOB, B5 and B20 blend results in lower CO, HC and smoke emissionsas compared to diesel. But the B5 and B20 blends results in higher efficiency as compared to MOB. HenceMOB or blends of MOB and diesel (B5 or B20) can be used as a substitute for diesel in diesel engines used intransportation as well as in the agriculture sector.
