Summary Expressed in lactic acid Still use this as one of the criteria for inclusion. If the raw milk in a certain area has a relatively consistent natural acidity level, it is considered acceptable. It's about Key words Bovine lactate, Determination 1. Master the method of determining the lactate degree of cattle by electrochemical method 2. Understand the relationship between the freshness of milk and acidity Fresh milk has a certain acidity, which is mainly composed of acidic substances such as protein, citrate, phosphate and carbon dioxide in milk. It has nothing to do with the acidity produced by microbial reproduction during storage, and is called natural acidity. There is a way to express cow lactic acid: use Expressed as a percentage of lactic acid. Acidity range: Appearance acidity accounts for approximately in fresh milk , you can think that there is lactic acid, the acidity of fresh milk is often True acidity The above milk is listed as unfresh milk. Gilory Titration Consumption The amount. The concept and significance of food acidity Bovine lactate: cow's milk has two acidity Appearance acidity: also known as intrinsic acidity (potential acidity), refers to the acidity of fresh milk that has just been extruded. It is caused by phosphoric acid, citric acid, casein, albumin and carbon dioxide. The appearance acidity is in fresh milk. Take up (in terms of lactic acid) The true acidity: also called the fermentation acidity, refers to the part of the acidity which is increased by lactose fermentation under the action of lactic acid bacteria, and the acid content in the milk exceeds That means there is lactic acid, so it is customary to put Have a sour taste, It is called natural acidity. When the milk is contaminated by bacteria, under the action of lactic acid bacteria, the lactic acid is decomposed to produce acid, and the acidity of the milk is increased. This acidity is called the fermentation acidity. The sum of the two is called the total acidity. When the total acidity of the milk is higher than It is only necessary to dilute with distilled water when preparing, and it does not matter at all. No matter where it is, it can be used in various fields. The use of reagents (toxic) when measuring by titration is dangerous and requires reagent costs. Moreover, measurement takes time, knowledge and experience. Sugar acidity meter Seconds, easy to operate, anyone can use. After the measurement by titration, it is also necessary to properly dispose of the used "sample liquid" and "titration reagent". Sugar acidity meter Doubly measure the acidity. Sour acid meter Dilute the solution sample to the instrument prism and press The acidity measurement will be displayed. Dell Certified Refurbished,Refurbished Dell Computers,Used Dell Computers,Used Dell Laptops For Sale Guangzhou Panda Electronic Technology Co., LTD , https://www.panda-3c.com