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Dehydration kinetics of onion slices in osmotic and air convective drying process
onion drying mathematical models diffusivity osmotic dehydration
2014/9/22
The effect of different pre-treatments (i.e. osmotic dehydration in 10, 15 and 20°Brix NaCl solution and drying air temperature of 50, 60 and 70°C) on drying behaviour of onion slices were investigate...
洋葱中黄酮类化合物体外抗氧化活性研究（Study on Antioxidant Activity in Vitro of Onion Flavonoids）
洋葱 黄酮类化合物 抗氧化活性
2009/9/11
通过测定洋葱中黄酮类化合物对Fe2+的螯合能力，对DPPH自由基、亚硝酸盐的清除能力，对卵黄脂蛋白脂质过氧化及油脂过氧化的抑制作用，研究了其体外抗氧化活性。结果表明：洋葱中黄酮类化合物对Fe2+具有很强的螯合能力，对DPPH自由基、亚硝酸盐具有良好的清除能力，对卵黄脂蛋白脂质过氧化及油脂过氧化具有明显的抑制作用，即洋葱中黄酮类化合物具有良好的体外抗氧化活性。
Effect of g irradiation and storage time on the ascorbic acid concentration in onion bulbs (Allium cepa L.)
onions ionisation ascorbic acid storage
2008/11/21
The stability of ascorbic acid (AA) of irradiated onion bulbs stored at 4 and 20 oC was studied. Gamma ionisation at 0.10; 0.15 and 0.30 kGy causes losses of 10, 13 and 20% of AA content, respectively...
Effects of g irradiation, temperature and storage time on the status of the glucose, fructose and sucrose in onion bulbs Allium cepa L.
glucose fructose sucrose ionisation storage
2008/11/19
The variations of glucose, fructose and sucrose in onion bulbs irradiated at 0.15 and 0.30 kGy and stored at 4, 10 and 20°C were investigated. Between 5 and 8 weeks glucose increased in concentration ...
Use of statistical and spatial analysis for investigating variations in an onion field at El-Saff, Giza, Egypt
precision farming spatial variability yield map onion
2008/11/10
The main objective of this study was to determine spatial variability in a dry onion field in EL-Saff agricultural farming village, Giza Governorate, and to produce a management strategy which is base...