Soy Peptone A3 SC

Overview

How soy peptone grades differ

Soy peptone is enzymatically hydrolysed soy protein, the plant nitrogen source in TSB and other general formulations, and the most common replacement for meat peptones. Grades in a range differ in degree of hydrolysis (amino-to-total nitrogen ratio), molecular weight distribution, carbohydrate content and clarity: more hydrolysed grades are taken up faster and suit start-up and high-density fermentation, less hydrolysed grades carry more peptides and release nitrogen longer. For cell culture choose a grade labelled clear or ultrafiltered. Soy is a declarable allergen; non-GMO raw material is marked on the product page.

Product highlights

• Available in 25 kg, from laboratory to industrial scale
• COA, specification sheet, and technical data sheet available; samples on request
• Manufactured in Taiwan with reliable supply

Frequently asked questions

Academic citation

Used in these applications

• Soy milk keeps contaminating your fermenter? Replace it with soy peptone and ISPA stable, sterile, traceable plant nitrogen source in place of in-house soy milk
• Vaccine production: serum reduction in Vero cellsPlant peptone supplementation to cut fetal bovine serum use

Used in published research and patents

• Effects of fermentation products of Bacillus coagulans on growth performance, fecal bacterial amount and diarrhea incidence of weaning pigletsJournal of Taiwan Livestock Research（畜產研究） 2025 · Livestock Research Institute, Ministry of Agriculture, TaiwanSoy Peptone (Ref. 19685) used as the plant-based nitrogen source for Bacillus coagulans fermentation in place of beef extract.
• Publications

Further reading

• Peptones and Protein Hydrolysates: Applications by IndustryAn overview of where peptones and protein hydrolysates are used: microbial fermentation, mammalian cell culture, clinical and diagnostic media, probiotics, biopharma and vaccines, agrobiotech, and cosmetic fermentation, with guidance on choosing a nitrogen source.