CONSTITUTION: The producing method of protein hydrolysates from fishscale comprises the steps of: dipping fishscale in 0.015 to 1.5M of alkali metal dissolved solution at room temperature for 2 to 48 hours, and dipping the alkali treated fishscale in 0.003 to 3M of hydrochloric acid solution at...
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pH,pH scale- (from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is more basic and less than 7...
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19. The antifungal substance was stable to heat and alkali, not sensitive to organic solvents, and sensitive to ultraviolet rays and acid. 该抗菌物质对热稳定,对紫外线敏感,对有机溶剂不敏感,对酸敏感,对碱稳定,紫外全波长扫描发现该抗菌物质为多烯大环内酯类抗生素。
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The pH scale measures the acidity of water on a scale of zero to 14, with anything less than seven being acidic. Common acids used in laboratory settings include: ▪Chloric acid ▪Perchloric acid ▪Nitric acid ▪Sulfuric acid Corrosive materials attack, dam...