Yeast extract powder (Certified) – is a certified grade manufactured under controlled condition by autolysis of Saccharomyces cerevesiae. Yeast Autolysate is prepared by drying the extract from autolyzing yeast cells (Saccharomyces). Yeast extract powder is a vacuum-dried extract concentrate of Baker’s yeast containing the B-complex factors of approximately three times the weight of ordinary dry yeast.
Yeast extract is the common name for yeast products made by extracting the cell contents. Yeast powder, LAB – manufactured under controlled conditions to retain its vitamin content and other nutritive values such as free amino acids.
| Yeast Extract Powder (Certified) - Specifications | |
| Categories | Media components |
| Grade | Certified |
| Appearance (Form) | Powder |
| Appearance (Colour) | Light yellow to brownish yellow |
| Solubility | Soluble in distilled/ purified water, insoluble in alcohol and ether |
| Clarity | 1% w/v aqueous solution is clear without any haziness after autoclaving at 15 lbs pressure (121ºC) for 15 minutes |
| Reaction | Reaction of 2% w/v aqueous solution at 25ºC. |
| pH | 6.50- 7.50 |
| TotalNitrogen | >= 10.0% |
| AminoNitrogen | >= 3.70% |
| Sodium chloride | <= 3.0% |
| Loss on drying | <= 6.0% |
| Residue on ignition | <= 18% |
| Storage | Room temp |
| Yeast Autolysate, Bacteriological Grade - Specifications | |
| Categories | Media components |
| Grade | Bacteriological Grade |
| Minimum assay (ex N on dried substances) | 60%+ |
| Appearance (Form) | Powder |
| HSN Code | 29420090 |
| Yeast extract powder - Specifications | |
| Categories | Media components |
| Grade | Bacteriology |
| Minimum assay (ex N on dried substances) | 60% |
| Maximum Limits of Impurities: | |
| Phosphorus | 2.5% |
| Coagulable protein | not detectable |
| Heavy metals(as Pb) | 0.005% |
| Loss on drying | 5% |
| HSN Code | 21021010 |
| Yeast extract spazial - Specifications | |
| Categories | Media components |
| Grade | Bacteriology |
| Appearance (Form) | Powder |
| Appearance (Colour) | Light brown |
| Assay (ex N; on dried basis) | Min 60% |
| Phosphorous (P) | Max 2.5% |
| Coagulable protein | Not detectable |
| Heavy metal (as Pb) | Max 0.005% |
| Loss on drying | Max 5% |
| Sulphated ash | Max 15% |
| Suitability (for microbiology) | Passes test |
| HSN Code | 21021010 |
| Yeast Extract (paste)- Specifications | |
| Categories | Media components |
| Grade | Bacteriology |
| Dry matter | 70% |
| Nitrogen | <7.29% |
| Total aminonitrogen | <3.25% |
| pH | <5.4 |
| HSN Code | 21021010 |
| Yeast Powder, LAB- Specifications | |
| Categories | Media components |
| Minimum assay (ex N on dried substances) | 55% |
| Appearance (Form) | Powder |
| Appearance (Colour) | Light brown to yellow to beige |
| HSN Code | 29420090 |
Safety Information
- Personal Protective Equipment Eye shields, Gloves, type N95 (US), type P1 (EN143) respirator filter
- WGK Germany 3
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