Acid production and proteolytic activity in milk by selectedLactobacillus γ-radiation induced mutants

1982 ◽  
Vol 27 (2) ◽  
pp. 142-143 ◽  
Author(s):  
J. Singh ◽  
A. Kaul
Keyword(s):  
Proteolytic Activity ◽  
Acid Production ◽  
Γ Radiation ◽  
Induced Mutants ◽  
Radiation Induced

Acid Production and Proteolytic Activity in Milk by Gamma-Irradiation Induced Mutants of Lactobacilli

1977 ◽  
Vol 40 (9) ◽  
pp. 600-602 ◽  
Author(s):  
JASJIT SINGH ◽  
B. RANGANATHAN
Keyword(s):  
Gamma Irradiation ◽  
Proteolytic Activity ◽  
Acid Production ◽  
Lactobacillus Casei ◽  
Amino Nitrogen ◽  
Lactobacillus Bulgaricus ◽  
Soluble Nitrogen ◽  
Streptococcus Lactis ◽  
Streptococcus Cremoris ◽  
Induced Mutants

Biochemical changes in selected gamma-irradiation induced mutants of Lactobacillus bulgaricus and Lactobacillus casei were examined. Cultures were tested after 24 h of incubation at 37 C for titratable and volatile acidities and proteolytic activity. The gamma-irradiation induced mutants exhibited 50–95% greater proteolytic activity than the unirradiated parent culutres. Some of the mutants produced greater titratable and volatile acidities in milk as compared to parent cultures. Two mutant cultures, Lb/G-1 from L. bulgaricus 59 and Lc/G-1 from L. casei RTS released significantly greater amounts of soluble nitrogen and amino nitrogen in whole casein and selected fractions than did parent cultures. Combining the mutant cultures with Streptococcus lactis C10 or Streptococcus cremoris C1 resulted in greater acid producing ability than that of the parent cultures mixed with the streptococci.

scholarly journals Protective effect of titanium tetrafluoride and silver diamine fluoride on radiation-induced dentin caries in vitro

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Beatriz Martines de Souza ◽  
Mayara Souza Silva ◽  
Aline Silva Braga ◽  
Patrícia Sanches Kerges Bueno ◽  
Paulo Sergio da Silva Santos ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Protective Effect ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Negative Control ◽  
Titanium Tetrafluoride ◽  
Silver Diamine Fluoride ◽  
Dentin Caries ◽  
Radiation Induced

AbstractThis in vitro study evaluated the protective effect of titanium tetrafluoride (TiF4) varnish and silver diamine fluoride (SDF) solution on the radiation-induced dentin caries. Bovine root dentin samples were irradiated (70 Gy) and treated as follows: (6 h): 4% TiF4 varnish; 5.42% NaF varnish; 30% SDF solution; placebo varnish; or untreated (negative control). Microcosm biofilm was produced from human dental biofilm (from patients with head-neck cancer) mixed with McBain saliva for the first 8 h. After 16 h and from day 2 to day 5, McBain saliva (0.2% sucrose) was replaced daily (37 °C, 5% CO2) (biological triplicate). Demineralization was quantified by transverse microradiography (TMR), while biofilm was analyzed by using viability, colony-forming units (CFU) counting and lactic acid production assays. The data were statistically analyzed by ANOVA (p < 0.05). TiF4 and SDF were able to reduce mineral loss compared to placebo and the negative control. TiF4 and SDF significantly reduced the biofilm viability compared to negative control. TiF4 significantly reduced the CFU count of total microorganism, while only SDF affected total streptococci and mutans streptococci counts. The varnishes induced a reduction in lactic acid production compared to the negative control. TiF4 and SDF may be good alternatives to control the development of radiation-induced dentin caries.

scholarly journals Inhibition of γ-Radiation Induced DNA Damage in Plasmid pBR322 by TMG, a Water-soluble Derivative of Vitamin E

2002 ◽  
Vol 43 (2) ◽  
pp. 153-153 ◽  
Author(s):  
REMA RAJAGOPALAN ◽  
KHALIDA WANI ◽  
NAGARAJ G. HUILGOL ◽  
TSUTOMU V. KAGIYA ◽  
CHERUPALLY K. KRISHNAN NAIR
Keyword(s):  
Dna Damage ◽  
Vitamin E ◽  
Water Soluble ◽  
Plasmid Pbr322 ◽  
Γ Radiation ◽  
Radiation Induced

Protective effect of an antithyroid compound against γ-radiation-induced damage in human colon cancer cells

2014 ◽  
Vol 53 (3) ◽  
pp. 611-619
Author(s):  
Marina Perona ◽  
Maria A. Dagrosa ◽  
Romina Pagotto ◽  
Mariana Casal ◽  
Omar Pignataro ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Protective Effect ◽  
Cancer Cells ◽  
Human Colon ◽  
Colon Cancer Cells ◽  
Human Colon Cancer ◽  
Γ Radiation ◽  
Radiation Induced ◽  
Human Colon Cancer Cells

Existence of long-lived radicals in the γ-radiation induced polymerization of ethylene

1965 ◽  
Vol 3 (8) ◽  
pp. 2931-2934 ◽  
Author(s):  
Sueo Machi ◽  
Miyuki Hagiwara ◽  
Masao Gotoda ◽  
Tsutomu Kagiya
Keyword(s):  
Γ Radiation ◽  
Radiation Induced

scholarly journals Krüppel-like factor 4 exhibits antiapoptotic activity following γ-radiation-induced DNA damage

Oncogene ◽  
2006 ◽  
Vol 26 (16) ◽  
pp. 2365-2373 ◽  
Author(s):  
A M Ghaleb ◽  
J P Katz ◽  
K H Kaestner ◽  
J X Du ◽  
V W Yang
Keyword(s):  
Dna Damage ◽  
Γ Radiation ◽  
Radiation Induced ◽  
Antiapoptotic Activity

Characterization of a γ-radiation-induced antifungal stress metabolite in citrus peel

1988 ◽  
Vol 27 (9) ◽  
pp. 2769-2772 ◽  
Author(s):  
Ian A. Dubery ◽  
Cedric W. Holzapfel ◽  
Gert J. Kruger ◽  
Johan C. Schabort ◽  
Martie van Dyk
Keyword(s):  
Citrus Peel ◽  
Γ Radiation ◽  
Radiation Induced
Sign in / Sign up

Export Citation Format

Share Document