The prebiotic fructooligosaccharide content of yacon makes this root an attractive alternative for the supplementation of a variety of food products. The preservation of yacon by fermentation has been proposed as an alternative to increase the probiotic content of the root concomitantly with its shelf life. Thus the fermented yacon could have significant functional content. The objective of thi...

Nukadoko is a fermented rice bran bed traditionally used for pickling vegetables in Japan. To date, the production of both homemade and commercial nukadoko has depended on natural fermentation without using starter cultures. Spices, Japanese pepper, and red pepper, are added to nukadoko empirically, but the functions of spices in nukadoko have not been fully elucidated. To investigate the effec...

Understanding the roles that various microbes play in silage fermentation and the factors that affect their growth can help us understand why silages ferment in various ways. In many, but not all cases, the fermentation that a crop undergoes can be explained by how microbes interact with factors such as moisture content, buffering capacity, and sugar content. However, management factors such as...

A new route of ethanol formation has recently been shown to exist in Leuconostoc mesenteroides (I). The evidence thus far available indicates that (a) glucose fermentation always yields 1 mole each of lactate, ethanol, and COZ, (b) aldolase and isomerase do not function in glucose fermentation by this organism, (c) the enzymes for the formation of D(-)-lactic acid from n-glyceraldehyde phosphat...

In this contribution we discuss the question of whether tumor cells in living animals can be killed off through lack of energy, and the related question of how the tumors are supplied with oxygen and glucose in the body. We assume it is understood that tumor cells obtain the energy required for their existence in two ways: by respiration and by fermentation. In respiration they burn organic mat...

BACKGROUND Tarhana, a wheat-yoghurt fermented mixture, is considered as a good source of saccharides, proteins, some vitamins and minerals. Moreover, their preparation is inexpensive and lactic acid fermentation offers benefits like product preservation, enhancement of nutritive value and sensory properties improvement. The aim of this work was to evaluate changes of some chemical parameters du...

Secondary fermentations during the bulk storage of fermented cucumbers can result in spoilage that causes a total loss of the fermented product, at an estimated cost of $6,000 to $15,000 per affected tank. Previous research has suggested that such fermentations are the result of microbiological utilization of lactic acid and the formation of acetic, butyric, and propionic acids. The objectives ...

A new route of ethanol formation has recently been shown to exist in Leuconostoc mesenteroides (I). The evidence thus far available indicates that (a) glucose fermentation always yields 1 mole each of lactate, ethanol, and COZ, (b) aldolase and isomerase do not function in glucose fermentation by this organism, (c) the enzymes for the formation of D(-)-lactic acid from n-glyceraldehyde phosphat...

Glossary batch process A technique in which all nutrients for the microorganisms are added to the bioreactor only once and the products are separated in their entirety when the fermentation process is completed. bioreactor or fermenter The culture vessel or system used for growing microorganisms and producing microbial metabolic products such as lactic acid. continuous process A technique in wh...