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Muangkote Sunida Vichitsoonthonkul Taweerat Srilaong Varit Wongs-Aree Chalermchai Photchanachai Songsin 《Food science and biotechnology》2019,28(2):303-310
Food Science and Biotechnology - Roasted dried chili, used to improve texture and taste, is important for various cuisines. The effect of roasting at 90 °C for 25 min on the... 相似文献
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ABSTRACT β-Lactoglobulin A solution at pH 6.4 was heated to 180 °C at the rate of 6 °C/min. By differential scanning calorimetry two independent endothermic peaks were observed. The first peak appeared below 100 °C is corresponded to the thermal denaturation of protein. This conformational change led to the aggregation and polymerization of molecules through disulfide linkage, particularly observed above 100 °C. The second endothermic peak appeared around 150 °C, which was brought by the decomposition of molecules as judged from electrophoresis. Up to 100 °C the viscosity of β-lactoglobulin A solution increased by heating, while the viscosity was reduced beyond 113 °C, due to change in the size of aggregate and decomposition of β-lactoglobulin A molecules. 相似文献
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Germinated parboiled brown rice (GPBR) is a healthy Thai food. To extend the quality of GPBR cv. KDML 105 with 8.06% moisture content, the effects of three packaging conditions on the characteristics of GPBR were investigated. GPBR in laminated (nylon/LLDPE) bags was sealed as follows: vacuum-sealed, 40% N2-sealed with 60% CO2 (60% CO2+40% N2), or 100% N2-sealed before storage under ambient conditions (30±2°C, 70±5% RH) for 15 months. GPBR in all the packages exhibited delayed fungal proliferation and very low aflatoxin B1 contamination (<0.82 μg/kg). The 100% N2-sealed package was the best treatment to preserve GPBR quality, as indicated by the highest 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging activity and free fatty acid content as well as the least rancidity and brownness. As observed through a scanning electron microscope, compared with vacuum-sealed packages and those sealed with 60% CO2+40% N2, the lowest hardness texture and the least elongation of cooked rice in 100% N2-sealed package were linked to a lesser compact GPBR endosperm ultrastructure. 相似文献
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