高效表达高比活植酸酶是进一步提高植酸酶发酵效价、降低植酸酶生产成本的一个有效途径。
High-level expression of phytase with high specific activity is an effective way to improve phytase fermentation potency and reduce its production cost.
在金华火腿加工过程中，肌内脂肪和皮下脂肪的酸价一直上升，过氧化值、羰基价和TBA值有升有降，但总体呈上升趋势，脂肪氧化程度不断增强。
During the processing of JinHua ham, AV value kept rising, POV value carbonyl value and TBA value was up and down, but rising totally, the degree of lipid oxidation increased continuously.
一般油炸食品企业，在使用煎炸油两三天后，油已变黑变稠，酸价超标，不得不废弃。
Generally Fried food enterprises, in the use of two or three days later, the frying oil has thickened oil has black, acid value exceeds bid, have to be scrapped.
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