In vitro real-time aging and characterization of poly (L/D-lactic acid)

2002 ◽  
Author(s):  
A.S. Koelling ◽  
N.J. Ballintyn ◽  
A. Salehi ◽  
D.J. Darden ◽  
M.E. Taylor ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Real Time

Isolation and in-vitro probiotic characterization of fructophilic lactic acid bacteria from Chinese fruits and flowers

LWT ◽  
2019 ◽  
Vol 104 ◽  
pp. 70-75 ◽  
Author(s):  
Hafiz Arbab Sakandar ◽  
Stan Kubow ◽  
Faizan Ahmed Sadiq
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria

scholarly journals Morphology andIn VitroBehavior of Electrospun Fibrous Poly(D,L-lactic acid) for Biomedical Applications

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Toshihiro Inami ◽  
Yasuhiro Tanimoto ◽  
Masayuki Ueda ◽  
Yo Shibata ◽  
Satoshi Hirayama ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Biomedical Applications ◽  
Polymer Concentration ◽  
The Body ◽  
Solution Flow Rate ◽  
Apatite Formation ◽  
X Ray Diffraction ◽  
Solution Flow

This work describes the fabrication, optimization, and characterization of electrospun fibrous poly(D,L-lactic acid) (PDLLA) for biomedical applications. The influences of the polymer concentration of the electrospinning solution (5, 10, or 15 wt%) and the solution flow rate (0.1, 0.5, 1.0, or 2.0 mL/h) on the morphology of the obtained fibrous PDLLA were evaluated. Thein vitrobiocompatibility of two types of PDLLA, ester terminated PDLLA (PDLLA-R) and carboxyl terminated PDLLA (PDLLA-COOH), was evaluated by monitoring apatite formation on samples immersed in Hanks’ balanced salt (HBS) solution. 15 wt% polymer solution was the most beneficial for preparing a fibrous PDLLA structure. Meanwhile, no differences in morphology were observed for PDLLA prepared at various flow rates. Apatite precipitate is formed on both types of PDLLA only 1 day after immersion in HBS solution. After 7 days of immersion, PDLLA-COOH showed greater apatite formation ability compared with that of PDLLA-R, as measured by thin-film X-ray diffraction. The results indicated that the carboxyl group is effective for apatite precipitation in the body environment.

In Vitro Characterization of Lactic Acid Bacteria Isolated from Bovine Milk as Potential Probiotic Strains to Prevent Bovine Mastitis

2018 ◽  
Vol 11 (1) ◽  
pp. 74-84 ◽  
Author(s):  
Matías S. Pellegrino ◽  
Ignacio D. Frola ◽  
Berardo Natanael ◽  
Dino Gobelli ◽  
María E.F. Nader-Macias ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Bovine Milk ◽  
Bovine Mastitis ◽  
In Vitro Characterization ◽  
Probiotic Strains

Real-time metabolomic analysis of lactic acid bacteria as monitored by in vitro NMR and chemometrics

Metabolomics ◽  
2016 ◽  
Vol 12 (4) ◽  
Author(s):  
Parvaneh Ebrahimi ◽  
Flemming Hofmann Larsen ◽  
Henrik Max Jensen ◽  
Finn Kvist Vogensen ◽  
Søren Balling Engelsen
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Real Time ◽  
Metabolomic Analysis

scholarly journals Tolerance of autochthonous lactic acid bacteria to different processing conditions in vitro

2020 ◽  
Vol 47 (2) ◽  
pp. 119-129
Author(s):  
Mirjana Grujović ◽  
Katarina Mladenović ◽  
Ljiljana Čomić
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Dairy Products ◽  
Starter Cultures ◽  
Processing Conditions ◽  
Dairy Processing ◽  
Nacl Concentration ◽  
Different Temperatures

In this paper, the effect of different temperatures, pH, and NaCl concentration on the growth of autochthonous lactic acid bacteria isolated from traditionally made Serbian cheese (Sokobanja area) was investigated by using the spectrophotometric method. Growth of tested Lactobacillus (Lb. fermentum, Lb. plantarum, and Lb. brevis) and Lactococcus lactis subsp. lactis biovar. diacetylactis five isolates were better in acidic pH, while the growth of Enterococcus isolates (E. durans, E. faecium, and E. faecalis) was better in basic pH, at 37 °C. At 4 °C after 24 h, none of the tested bacteria showed growth. Since the autochthonous isolates were tolerant to a tested range of dairy processing conditions, further studies need to include the characterization of enzymatic activity of selected isolates, as well as the ability to use these isolates like starter cultures or food supplements in dairy or non-dairy products.

Characterization of a homologous series of d , l -lactic acid oligomers; a mechanistic study on the degradation kinetics in vitro

Biomaterials ◽  
2003 ◽  
Vol 24 (21) ◽  
pp. 3835-3844 ◽  
Author(s):  
Gesine Schliecker ◽  
Carsten Schmidt ◽  
Stefan Fuchs ◽  
Thomas Kissel
Keyword(s):  
Lactic Acid ◽  
Homologous Series ◽  
Degradation Kinetics ◽  
Mechanistic Study
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