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Effects of aging and freezing/thawing sequence on quality attributes of bovine Mm. gluteus medius and biceps femoris
Aging Freezing Glutathione Peroxidase Purge Thawing
2017/2/9
The effects of aging and freezing/thawing sequence on color, physicochemical, and enzymatic characteristics of two beef muscles (Mm. gluteus medius, GM and biceps femoris, BF) were evaluated.
Effect of low-density lipoprotein addition to soybean lecithin-based extenders on bull spermatozoa following freezing-thawing–preliminary results
bull sperm cryopreservation sperm motility viability cryoprotectant
2016/12/20
Soybean lecithin-based extenders represent an alternative to extenders containing egg yolk, but there has been discussion about their cryoprotective efficacy. Low-density lipoprotein (LDL) was proved ...
冻融循环对甲壳素凝聚态结构和脱乙酰反应的影响（Effects of Freezing-thawing Cyclic Treatment on Condensed State Structure and N-deacetylation of Chitin）
甲壳素 冻融循环处理 N-脱乙酰反应
2009/11/3
甲壳素和质量分数为40%的浓NaOH溶液的混合物在-18℃和40℃条件下反复进行冻融处理，结果表明慢速冷冻加低温解冻的冻融循环处理过程中，冰晶的反复形成和重结晶能够破坏甲壳素凝聚态特别是晶态结构。经过3次冻融循环处理，可使甲壳素在NaOH溶液中完全溶解，获得甲壳素最终质量分数为4%，NaOH最终质量分数约为10%的均相溶液，为用均相脱乙酰法制备半脱乙酰水溶性甲壳素提供前提。
Effect of solid phase wettability on water transport and retention in peat enriched soil affected by freezing/thawing
wettability water retention freezing/thawing soil
2008/11/20
Samples of A and B horizons of arable loessial soil, with and without the addition of c.a. 9% of peat and subjected to six freezing/thawing cycles, were studied. Surface free energies and water contac...