Detailed investigation of an electrodialytic process during the separation of lactic acid from a complex mixture

2005 ◽  
Vol 249 (1-2) ◽  
pp. 173-182 ◽  
Author(s):  
Vu Hong Thang ◽  
Werner Koschuh ◽  
Klaus D. Kulbe ◽  
Senad Novalin
Keyword(s):  
Lactic Acid ◽  
Complex Mixture

The degradation of lactose by interaction with casein

1965 ◽  
Vol 18 (9) ◽  
pp. 1471 ◽  
Author(s):  
EL Richards
Keyword(s):  
Lactic Acid ◽  
Phosphoric Acid ◽  
Complex Mixture ◽  
Glycollic Acid

Lactose and casein react to give a complex mixture of sugars and acids from which lactulose, D-galactose, D-tagatose, 5-hydroxymethylfurfural, lactic acid, glycollic acid, phosphoric acid, and the lactones of 2-deoxy-D-glycero-tetronic and 3-deoxy-D-erythro-pentonic acids have been isolated and identified.

Characterization of kefir grains grown in cows' milk and in soya milk

1999 ◽  
Vol 66 (2) ◽  
pp. 327-333 ◽  
Author(s):  
ANALÍA G. ABRAHAM ◽  
GRACIELA L. DE ANTONI
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Complex Mixture ◽  
Lactobacillus Brevis ◽  
Dry Weight ◽  
Acetic Acid Bacteria ◽  
Growth Media ◽  
Yellow Colour ◽  
Soya Milk ◽  
Kefir Grains

Kefir is a refreshing fermented milk with a slightly acidic taste obtained by incubating milk with kefir grains (Saloff-Coste, 1996). Kefir grains are a complex mixture of lactic acid bacteria and yeasts in a strong and specific association. They are characterized by an irregular form, a folded and uneven surface and a white or slightly yellow colour. They are tough and resilient and have a characteristic acid taste (Bottazzi et al. 1994). The basic microflora contains lactococci, homofermentative and heterofermentative lactobacilli, yeasts and acetic acid bacteria (Bottazzi et al. 1994; Rea et al. 1996). Among the yeasts isolated from grains and identified are Candida kefir, Saccharomyces cerevisiae, Sac. delbrueckii, Cand. holmii, Sac. unisporus and Sac. lipolytica (Angulo et al. 1993; Marshall, 1993; Garrote et al. 1997). Lactobacillus brevis, Lb. viridescens, Lb. casei, Lb. kefir, Lb. kefiranofaciens, Lb. kefirgranum, Lb. parakefir, Leuconostoc spp. and Lactococcus lactis are among the lactic acid bacteria present in the grains (Marshall et al. 1984; Toba et al. 1991; Takizawa et al. 1994; Garrote et al. 1997). The mixed microflora of yeasts and bacteria is held together by a matrix containing (g/kg dry weight) protein 340, polysaccharide 470 (Ottogalli et al. 1973).The study of kefir grains in milk has been centred on the characteristics of the polysaccharide produced by lactobacilli within the grain (Yokoi et al. 1991). This polysaccharide, named kefiran, is composed of glucose and galactose (Yokoi et al. 1991). It has been suggested that proteins are incorporated from the growth media (Bassette & Acosta 1988), but no details about structure and composition are available.Soyabeans are an important component of the diet in many countries and have been used to obtain fermented products such as sogurt (Mann, 1991). Special attention has been given to the growth of, and sugar utilization by, Bifidobacterium spp., Lb. delbrueckii subsp. bulgaricus and Streptococcus thermophilus in soya milk (Buono et al. 1990; Murti et al. 1993; Ankenman Granata & Morr, 1996). To our knowledge, there have been no attempts to ferment soya milk with kefir grains.The aim of this study was to investigate the growth of kefir grains in soya milk and the composition of these grains, focusing on the matrix proteins.

Demonstration of Retinal Glycogen with Silver Methenamine

1971 ◽  
Vol 29 ◽  
pp. 564-565
Author(s):  
A. W. Sedar ◽  
G. H. Bresnick
Keyword(s):  
Lactic Acid ◽  
Chromic Acid ◽  
Periodic Acid ◽  
Müller Cell ◽  
External Limiting Membrane ◽  
Electron Microscope Level ◽  
Reactive Process ◽  
Inner Limiting Membrane ◽  
Muller Cell ◽  
And Migration

After experimetnal damage to the retina with a variety of procedures Müller cell hypertrophy and migration occurs. According to Kuwabara and others the reactive process in these injuries is evidenced by a marked increase in amount of glycogen in the Müller cells. These cells were considered originally supporting elements with fiber processes extending throughout the retina from inner limiting membrane to external limiting membrane, but are known now to have high lactic acid dehydrogenase activity and the ability to synthesize glycogen. Since the periodic acid-chromic acid-silver methenamine technique was shown to demonstrate glycogen at the electron microscope level, it was selected to react with glycogen in the fine processes of the Müller cell that ramify among the neural elements in various layers of the retina and demarcate these cells cytologically. The Rhesus monkey was chosen as an example of a well vascularized retina and the rabbit as an example of a avascular retina to explore the possibilities of the technique.

Factors affecting the ability of dental cements to alter the pH of lactic acid solutions

2000 ◽  
Vol 27 (12) ◽  
pp. 1030-1033 ◽  
Author(s):  
M. Patel ◽  
H. Tawfik ◽  
Y. Myint ◽  
D. Brocklehurst ◽  
J. W. Nicholson
Keyword(s):  
Lactic Acid ◽  
Acid Solutions ◽  
Factors Affecting

Poly-L-Lactic Acid Fillers: Tips for Optimizing Use

2007 ◽  
Vol 38 (8) ◽  
pp. 28
Author(s):  
DAMIAN MCNAMARA
Keyword(s):  
Lactic Acid

Lactic Acid in the Stomach

1885 ◽  
Vol 20 (499supp) ◽  
pp. 7966-7966
Keyword(s):  
Lactic Acid

Lactic acid bacteria and yeasts in kefir grains and kefir made from them

2002 ◽  
Vol 28 (1) ◽  
pp. 1-6 ◽  
Author(s):  
E Simova ◽  
D Beshkova ◽  
A Angelov ◽  
Ts Hristozova ◽  
G Frengova ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Kefir Grains

Conversion of hydrophilic constituents from Mercurialis perennis L. by lactic acid fermentation

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
P Lorenz ◽  
S Duckstein ◽  
J Bertrams ◽  
U Meyer ◽  
F Stintzing
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Fermentation ◽  
Acid Fermentation

Method of separation of major off-odor component and change of components of Gastrodia elata Blume fermented by lactic acid bacteria

2017 ◽  
Author(s):  
S Young Eun ◽  
L In Sok ◽  
S Eun Ju ◽  
C Min Kyung ◽  
H Hyu Ah ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Gastrodia Elata ◽  
Gastrodia Elata Blume
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