Preservative For Rice And Flour Products
Preservative for rice and flour products is a kind of food preservative produced by microbial fermentation to obtain ε-polylysine, and produced through a unique refined, purified, compound process.
Features:
■It is compounded by natural food preservatives ε-polylysine and acidity regulator.
■Light yellow liquid.
■Adding rice products into water or seasoning, evenly mixed with the preservative before using. Adding 0.5% ~ 1% of the food material weight.
■Wheaten products just need soak in 1% ~ 2% preservative solution for 5 minutes after blanching and cooling.
■Less dosage can give a good antiseptic effect.
■After added, the flavor of the food was not affected obviously.
Storage:
Avoid direct sunlight, low temperature and humidity at the seal. Shelf life is 12 months after manufacture.
Packing:
20kg/carton
Notes:
■After opening, cold storage, use as soon as possible.
■There may be precipitate formation, but no effect on performance and quality.
General properties of ε-polylysine:
1.High security
■It is a native biological preservative.
2.Antibacterial broad spectrum
■It can play a good bacteriostatic effect on gram-positive bacterial(Bacillus cereus, etc.), gram-negative bacterial(E. coli, etc), yeast etc., especially for food poisoning microorganism.
■It can also play a good bacteriostatic effect on thermoduric bacterial which is represented by Bacillus subtilis.
■It also have a good antibacterial effect on Lactic bcid bacteria which have a great influence on food preservation.
Inhibitory effects on microorganism of ε-polylysine
Test microorganism | Minimum inhibitory concentration(ppm) | |
Lactobacillus brevis | Lactobacillus brevis | 10 |
Streptococcus lactis | Streptococcus lactis | 100 |
Escherichia coli | Escherichia coli | 50 |
Staphylococcus aureus | Staphylococcus aureus | 12 |
Pseudomonas aeruginosa | Pseudomonas aeruginosa | <3 |
Salmonella Typhimurium | Salmonella typhimurium | 16 |
Bacillus subtillis | Bacillus subtilis | 3 |
Bacillus cereus | Bacillus cereus | 30 |
Bacillus stearothermophilus | Bacillus stearothermophilus | 5 |
Micrococcus luteus | Micrococcus luteus | 16 |
Clostridium | Clostridium sporogenes | 32 |
Campylobacter jejuni | Campylobacter jejuni | 100 |
Saccharomyces cerevisiae | Saccharomyces cerevisiae | 50 |
Candida | Candida utilis | <3 |
Pichia membranaefaciens | Pichia menbranaefaciens | <3 |
Pichia anomala | Pichia anomala | 150 |
Combination yeast | Zygosacchromyces rouxii | 150 |
Rhodothece glutinis | Rhodotorula lactosa | 25 |
Aspergillus niger | Aspergillus niger | 250 |
3.Wide range of conditions
■ε-polylysine has good heat resistance(thermal stability test)
Experiment method | Minimum inhibitory concentration(ppm) |
No heating products | 50 |
80℃,heating 60 min. | 50 |
100℃,heating 30min. | 50 |
120℃,heating 20min. | 50 |
※Escherichia coli was used as test bacteria
■ε-polylysine can be used in a wide range of PH
Test microorganisms | Minimum inhibitory concentration(ppm) | |||
pH | 5.0 | 6.0 | 7.0 | 8.0 |
Bacillus subtilis | 3.0 | 3.0 | 3.0 | 3.0 |
Bacillus cereus | 25.0 | 100.0 | 50.0 | 12.5 |
Colibacillus | 25.0 | 25.0 | 50.0 | 50.0 |
Staphylococcus aureus | 12.5 | 25.0 | 12.5 | く6.3 |
■ε-polylysine has good water solubility
Our company has conducted a variety of research and development on the application of preservatives, and if there are any problems, please contact us.