Peptone from Beef and Beef bones |250g

Peptone | 250g  

Extract from beef and beef bones

Fact customers need to know

Due to the low capacity of food production and inflation, peptones made from pure beef are rarely available on the market today, and even when they are available, they are expensive. Most peptones available today are derived from fish and shrimp sludge, a by-product of seafood production, or from feathers or offal, a by-product of poultry production; the former contains chitin, which inhibits bacterial growth, and the latter has an uneven distribution of amino acid content.

This peptone is made from a mixture of beef and beef bones and has a slightly higher calcium content than pure beef peptones, with the disadvantages of slight turbidity of the medium solution at elevated pH and the possible effect of calcium chloride (from the presence of sodium chloride in LB, SOC, etc.) on the stability of cell membranes. Nevertheless, it is competent for general bacterial culture purposes.

Physical Characteristics                Results             Standard Specification

Appearance                                      Straw powder    Straw powder

pH (25°C)                                          4.5 - 7.0            4.0 - 7.5

Clarity                                               Clear                 Clear

Loss on drying                                  ≤6%                   ≤7.0%

Ash                                                   ≤10%                 ≤17.0%

Total nitrogen (N) basis                    ≥ 13.0%             ≥ 8.0%

Amino-nitrogen basis                       ≥ 2.0%               ≥ 2.0%

Form

Powder, yellow

Solubility

H2O: 2%, clear, yellow.