The protease, amylase, and cellulase from Portunus trituberculatus midgut gland had high thermostability and pH-stability in 2h and 4 h.
蛋白酶、淀粉酶、纤维素酶在短时间内有很高的热稳定性及很广的酸碱稳定性范围。
The storing stability of urea formaldehyde resin adhesive with the change of PH value is researched in attempt to guide the production and imporove the application for products.
对脲醛树脂胶的贮存稳定性随p H值的变化进行研究，以指导生产，提高产品的适用。
The extraction of red pigment from red sweet pepper with methanol was reported. Effect of the PH value, heat and sunlight on the stability were researched in depth.
本文报道了采用甲醇从红甜椒中提取甜椒红色素的工艺，并对P H值、光、热等因素对其稳定性的影响，作了较深的研究。
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