Biomaterial Database

Sterilization of dehydrated potato granules with propylene oxide. 1976

L Steele, and D Hadziyev

Results were provided for propylene oxide "cold sterilization" of dehydrated mashed potato granules that contained 7% moisture and 0.044% chloride. Treatment with an optimum concentration of 0.1% w/w sterilant for 6 days at 22 degrees C gave a bacterial count reduction from 3.4 X 10(5) to less than 5 X 10(3), a low glycol residue of 29 ppm, and 12 ppm of chlorohydrin, with the 1-chloro-2-propanol isomer constituting 94% of the total. This indicated that, in spite of the granule pH of 5.62, nucleophilic attack in dehydrated granules involves nonprotonated propylene oxide. Based on NMR analysis, evidence was given that such sterilization does not result in detectable etherification of starch, even though its content of 83% on a dry basis places it as the major potentially reactive constituent.

UI	MeSH Term	Description	Entries
D010945	Plants, Edible	An organism of the vegetable kingdom suitable by nature for use as a food, especially by human beings. Not all parts of any given plant are edible but all parts of edible plants have been known to figure as raw or cooked food: leaves, roots, tubers, stems, seeds, buds, fruits, and flowers. The most commonly edible parts of plants are FRUIT, usually sweet, fleshy, and succulent. Most edible plants are commonly cultivated for their nutritional value and are referred to as VEGETABLES.	Food Plants,Edible Plant,Edible Plants,Food Plant,Plant, Edible,Plant, Food,Plants, Food
D004852	Epoxy Compounds	Organic compounds that include a cyclic ether with three ring atoms in their structure. They are commonly used as precursors for POLYMERS such as EPOXY RESINS.	Epoxide,Epoxides,Epoxy Compound,Oxiranes,Compound, Epoxy,Compounds, Epoxy
D004988	Ethers, Cyclic	Compounds of the general formula R-O-R arranged in a ring or crown formation.	Cyclic Ether,Cyclic Ethers,Ether, Cyclic
D005519	Food Preservation	Procedures or techniques used to keep food from spoiling.	Preservation, Food
D013242	Sterilization	The destroying of all forms of life, especially microorganisms, by heat, chemical, or other means.