Changes in phenolics and antioxidant capacity during fermentation and simulated in vitro digestion of mango puree fermented with different lactic acid bacteria

2021 ◽  
Author(s):  
Florence M. Mashitoa ◽  
Vimbainashe E. Manhivi ◽  
Stephen A. Akinola ◽  
Cyrielle Garcia ◽  
Fabienne Remize ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Antioxidant Capacity ◽  
In Vitro Digestion

scholarly journals Porphyra yezoensis Sauces Fermented With Lactic Acid Bacteria: Fermentation Properties, Flavor Profile, and Evaluation of Antioxidant Capacity in vitro

2022 ◽  
Vol 8 ◽  
Author(s):  
Jie Yang ◽  
Tengqi Gao ◽  
Feng Ge ◽  
Hao Sun ◽  
Zihang Cui ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Antioxidant Capacity ◽  
Porphyra Yezoensis ◽  
Streptococcus Thermophilus ◽  
Gas Chromatography Mass Spectrometry ◽  
Reducing Ability ◽  
Volatile Flavor ◽  
Dpph Scavenging

The demand for roasted seaweed sandwich (Porphyra yezoensis) product has risen in recent years. The product slicing process has created a huge number of scraps that are not utilized effectively. Three lactic acid bacteria (LAB) strains were used to ferment P. yezoensis sauces in this study, including Lactobacillus fermentum, Lactobacillus casei, Streptococcus thermophilus, and the mixed strains (1:1:1, v/v). The fermentation characteristics, antioxidant capacity in vitro, sensory properties, and flavoring substances of fermented P. yezoensis sauces were analyzed. After 21 days of fermentation, all LAB strains grew well in the P. yezoensis sauces, with protease activity increased to 6.6, 9.24, 5.06, and 5.5 U/mL, respectively. Also, the flavors of P. yezoensis sauces fermented with L. casei and L. fermentum were satisfactory. On this premise, gas chromatography-mass spectrometry (GC-MS) was used to investigate the changes in gustatory compounds in P. yezoensis sauces fermented with L. casei and L. fermentum. In general, 42 and 41 volatile flavor chemicals were identified after the fermentation of L. casei and L. fermentum. Furthermore, the fermented P. yezoensis sauce possessed greater DPPH scavenging activity and ferric-reducing ability power than the unfermented P. yezoensis. Overall, the flavor and taste of P. yezoensis sauce fermented by L. casei was superior.

scholarly journals Co-Microencapsulation of Flavonoids from Yellow Onion Skins and Lactic Acid Bacteria Lead to Multifunctional Ingredient for Nutraceutical and Pharmaceutics Applications

Pharmaceutics ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 1053
Author(s):  
Ștefania Adelina Milea ◽  
Mihaela Aida Vasile ◽  
Oana Crăciunescu ◽  
Ana-Maria Prelipcean ◽  
Gabriela Elena Bahrim ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Value Added ◽  
Dry Weight ◽  
Natural Antioxidants ◽  
In Vitro Digestion ◽  
Inhibitory Effect ◽  
Coating Materials ◽  
Yellow Onion

In this study, flavonoids extracted from yellow onion skins and Lactobacillus casei were encapsulated in a combination of whey protein isolate, inulin and maltodextrin with an encapsulation efficiency of 84.82 ± 0.72% for flavonoids and 72.49 ± 0.11% for lactic acid bacteria. The obtained powder showed a flavonoid content of 89.49 ± 4.12 mg quercetin equivalents/g dry weight (DW) and an antioxidant activity of 39.27 ± 0.45 mM Trolox/g DW. The powder presented a significant antidiabetic and anti-inflammatory potential, with an inhibitory effect on α-amylase, lipase and lipoxygenase of 76.40 ± 2.30%, 82.58 ± 3.36% and 49.01 ± 0.62%, respectively. The results obtained for in vitro digestion showed that the coating materials have a protective effect on the flavonoids release. Cytotoxicity results indicated that the powder was cytocompatible up to a concentration of 500 μg/mL. The functional potential of the powder was tested by adding in a selected food matrix, highlighting a good stability of the phytochemicals, whereas an increase with 1 log cell forming unit (CFU)/g DW was observed after 21 days of storage. The obtained results are promising in the valorization of natural antioxidants in combination with lactic acid bacteria in order to develop multifunctional ingredients with value-added for food and pharmaceutics applications.

The combined effect of fermentation of lactic acid bacteria and in vitro digestion on metabolomic and oligosaccharide profile of oat beverage

2021 ◽  
Vol 142 ◽  
pp. 110216
Author(s):  
Serena Bocchi ◽  
Gabriele Rocchetti ◽  
Marina Elli ◽  
Luigi Lucini ◽  
Chong-Yoon Lim ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
In Vitro Digestion ◽  
Combined Effect

scholarly journals Impact of coffee silverskin on in-vitro viability of kefir culture during storage

Mljekarstvo ◽  
2021 ◽  
Vol 72 (1) ◽  
pp. 22-32
Author(s):  
Sine Ozmen-Togay ◽  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Dairy Products ◽  
Storage Period ◽  
In Vitro Digestion ◽  
Coffee Bean ◽  
Coffee Silverskin ◽  
Probiotic Dairy Products

Probiotic dairy products must contain a certain level of live probiotic microorganisms at the time of consumption. The number of live microorganisms in kefir culture, which is a mixture of different microorganisms, may change during storage due to various factors. In this study, the effects of adding a novel ingredient coffee bean membrane (CSS-coffee silverskin), on the viability of microorganisms contained in kefir culture were investigated. For this purpose, CSS obtained from 2 different coffee varieties (Arabica and Robusta) was added to kefir samples at 3 different concentrations (0.5, 0.75 and 1.0 %) at the beginning of fermentation. It was observed that especially the addition of CSS belonging to the Robusta variety significantly increased the viability of lactic acid bacteria (lactobacilli and lactococci) which accounted for 88-94.10 % and 82.37-92.44 % respectively. During the storage period of 28 days at 4 °C; it could be observed that kefir enrichment with CSS of both coffee varieties increased the viability of lactobacilli and lactococci after in-vitro digestion, depending on the rate of supplementation. Number of yeasts was decreased during the storage.

Use of imaging techniques to identify efficient controlled release systems of Lactobacillus rhamnosus GG during in vitro digestion

2017 ◽  
Vol 8 (4) ◽  
pp. 1587-1598 ◽  
Author(s):  
Justine Guerin ◽  
Jennifer Burgain ◽  
Frédéric Borges ◽  
Bhesh Bhandari ◽  
Stéphane Desobry ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Imaging Techniques ◽  
Lactobacillus Rhamnosus ◽  
In Vitro Digestion ◽  
System Efficiency ◽  
Matrix Formulation ◽  
Lactobacillus Rhamnosus Gg ◽  
Microscopy Techniques

Complementary microscopy techniques were used to highlight the importance of matrix formulation on lactic acid bacteria delivery system efficiency.

In vitro adhesion of lactic acid bacteria and bifidobacteria to Caco-2P and IEC-18 cells

2005 ◽  
Vol 34 (1) ◽  
pp. 91-99 ◽  
Author(s):  
K. Szekér ◽  
J. Beczner ◽  
A. Halász ◽  
Á. Mayer ◽  
J.M. Rezessy-Szabó ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
In Vitro Adhesion
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