Agar is composed of two parts: Agarose and Agaropectin. Gelatin is a hydrolyzed product of collagen. It is a fat-free, high-protein, and cholesterol-free. It is a natural nutritious food thickener. The temperature difference between the freezing point and the melting point of AGAR is very large. Agar-agar is completely vegan as it is solely derived from seaweed, and there are no animal ingredients used, even when the seaweed is being processed into flakes or powder. According to information on Wikipedia , agar-agar consists solely of two polysaccharides: agarose and agaropectin, both of which can be found in the red algae. Cetrimide Agar is a selective and differential medium used for the isolation and identification of Pseudomonas aeruginosa from clinical and non-clinical specimens. Cetrimide is the selective agent and inhibits most bacteria by acting as a detergent ( Cetyltrimethylammonium bromide, a quaternary ammonium, cationic detergent). MacConkey agar is a selective and differential culture medium for bacteria. It is designed to selectively isolate Gram-negative and enteric (normally found in the intestinal tract) bacteria and differentiate them based on lactose fermentation. [1] Lactose fermenters turn red or pink on MacConkey agar, and nonfermenters do not change color. This research provided an eco-friendly agar extraction method from A. plicata and revealed its potential application for the production of agar, agarose, and agaropectin. Agar, agarose, and agaropectin were extracted from the red alga Ahnfeltia plicata, and their properties and structures were characterized. 35vbY.

difference between agar and agar agar