摘要:
Improved apparatus for the continuous aseptic growth of single-cell protein materials, employing an aqueous ethanolic substrate fortified with nutrient elements, preferably under oxygen limited conditions. The fermentation is conducted under conditions which afford effective means of attaining high rates of oxygen transfer and heat removal coupled with intense agitation.
摘要:
Protein-containing materials are treated at specified temperature and pH conditions for a suitable length of time to yield products which replace material such as egg solids and nonfat dry milk.
摘要:
Growth of pseudomycelial yeasts and removal of bacterial contamination in conventional fermentation processes are accomplished by withdrawing product as a foam from the fermentor.
摘要:
A method for inhibiting microbial contamination, particularly applicable to processes for preparing food materials under nominally aseptic conditions, is carried out by cycling the temperature of a desired portion of the process which is a source of contamination between upper and lower limits which fall between 0.degree. and 60.degree. C. and which are at least 5.degree. C. apart at a frequency of about 0.2 to 5 cycles per hour to create a varying thermal environment at the source of contamination which slows microbial growth.