The objective of this study was to determine the effect of freezing and thawing or freezing and thawing with an additional aging period after frozen storage on the tenderness of longissimus lumborum (LL) and semitendinosus (ST) steaks relative to aged, fresh steaks. Left-side LL and ST (n = 35 each) were obtained from U.S. Select carcasses classified at the grading stand by the U.S. Meat Animal...

The formation of methanethiol and dimethyl disulfide in the broccoli tissue homogenates following filtration and centrifugal fractionation, and their suppression by freeze-thawing was investigated. Methanethiol was formed only in the headspace of the residue but not in the filtrate or supernatant fractions like dimethyl disulfide. Freeze-thawing, however, suppressed their formation in all homog...

The lack of a standard test method for evaluating the resistance of pervious concrete to cycles of freezing and thawing in the presence of deicing salts is the motive behind this study. Different sample size and geometry, cycle duration, and level of submersion in brine solutions were investigated to achieve an optimized test method. The optimized test method was able to produce different level...

Four meat thawing techniques that are most commonly used in daily life were used: refrigerator thawing, microwave ambient temperature and water to evaluate the physico-chemical histological alterations thawed beef. After structural, chemical, physical characteristics of beef evaluated. The results showed at 4°C was characterized by highest pH value (5.65 ± 0.02) a significant difference (P<0...

Cryopreservation induces injuries to fish spermatozoa that in turn affect sperm quality in terms of fertilization ability, motility, DNA and protein integrity and larval survival. To reduce the loss of sperm quality due to freezing-thawing, it is necessary to improve these procedures. In the present study we investigated the ability of two antifreeze proteins (AFPI and AFPIII) to reduce the los...

PURPOSE To quantify levels of subvisible particles and protein aggregates in repackaged bevacizumab obtained from compounding pharmacies, as well as in samples of bevacizumab and ranibizumab tested in controlled laboratory experiments. METHODS Repackaged bevacizumab was purchased from four external compounding pharmacies. For controlled laboratory studies, bevacizumab and placebo were drawn i...

Specimens of plasma from 51 agricultural workers were divided into several portions for freezing and storage. Periodic assays (in duplicate) for cholinesterase activity in each specimen were compared with the initial values obtained on each fresh, unfrozen specimen. Freezing and/or thawing results in loss of approximately 30% of the plasma cholinesterase activity. It is not possible to use divi...

This paper reviews new developments in methods of freezing (high-pressure freezing, dehydrofreezing and applications of antifreeze protein and ice nucleation protein) and thawing (high-pressure and microwave thawing, ohmic thawing and acoustic thawing) for foods. With a good understanding of the solid–liquid phase diagram of water, the effects of pressure on food freezing– thawing cycles are hi...

objective: to evaluate the effect of honey supplemented to cryoprotectant medium on post-thaw sperm motility, concentration, morphology and agglutination. materials and methods: thirty semen samples were collected from 30 infertile patients. after assessment of semen analysis, semen samples were divided into 3 aliquots (0.7ml for each) and mixed with 1 ml of cryopreservation solution (g1, contr...