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Lactic Acid - Wiley Online Library

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Last Updated: 11 May 2022

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Glycerol fermentation by skin bacteria generates lactic acid and upregulates the expression levels of genes associated with the skin barrier function

Commensal bacteria play a vital role in multiple skin functions by delivering the first layer of protection against pathogens and maintaining the skin barrier. Although the hydrating effects of glycerol on the skin microbiome is well-known, our research shows the general benefits of glycerol on the skin microbiome, as well as an alternative route of action for multiple skin benefits.

Source link: https://onlinelibrary.wiley.com/doi/10.1111/exd.14604


Broadband microwave absorbing materials for green electronics based on poly (lactic acid)/ethylene‐vinyl acetate copolymer blends loaded with carbon nanotube

For the composite loaded with 0. 25 percent of CNT, a minimum reflection loss of 29 dB at 11. 7 GHz and a bandwidth of 4. 6 GHz was measured, with the presence of 0. 58 % of CNT and a bandwidth of 4. 8 GHz. These composites are promising candidates for elastic materials suitable for shielding electronic devices in a wide frequency range due to the outstanding microwave absorption characteristics and broad absorption bandwidth with little amount of CNT.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/app.52510


Incorporating fingolimod through poly(lactic‐co‐glycolic acid) nanoparticles in electrospun polyurethane/polycaprolactone/gelatin scaffold: An in vitro study for nerve tissue engineering

Fingolimod, a potent agent for nerve regeneration, is a promising candidate for promoting axonal regeneration by positively impacting neonatal and adult Schwann cells. Nerve tissue engineering employs a novel practical strategy by enlisting the scientific techniques for manufacturing neural extracellular matrix. Young's modulus was the first scaffold had in the expected range for nerve tissue. Compared to other groups, a cellular viability analysis showed that the PU/PCL/0. 05 percent fingolimod had a higher cell survival. The results show that PU/PCL/gelatin scaffolds loading from 0. 01 fingolimod might be a good candidate for peripheral nerve regeneration.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/pat.5715


Safety and efficacy of a feed additive consisting of lactic acid produced by Weizmannia coagulans (synonym Bacillus coagulans) DSM 32789 for all animal species except for fish (Jungbunzlauer SA)

The Panel on Additives and Substances Used in Animal Feed was requested to present a scientific report on the safety and effectiveness of lactic acid produced by a non-genetically modified strain of Weizmannia coagulans for all animal species except for fish following a request from the European Commission. For other non-ruminant animals, the corresponding safe drinking water will be 15,000 mg/L water for pigs and 8,000 mg/L for other non-ruminant species. Although no standardized amount of lactic acid in water for drinking by ruminants can be determined, the Panel finds that the use in water for drinking is safe in ruminants when the total daily intake of the ingredient does not exceed the daily dose that is considered safe when consumed via feed.

Source link: https://onlinelibrary.wiley.com/doi/10.2903/j.efsa.2022.7268


Mechanically enhanced poly(lactic acid)/polyurethane blend with interfacial‐localized clay particles

0. 1 wt% of the C30B maximises elongation at break, while 0. 1 wt% of the C20A increases impact strength due to its effect on PLA's crystal structure. Hydrophilic C30B promotes ductile'PLA crystal growth, according to thermal analysis by differential scanning calorimeter, although less hydrophilic C20A causes rigid crystal formation, which is reflected on the mechanical characteristics. Meanwhile, natural clay, CNa+ enhances the mechanical properties of blend, with the reduced distance between the TPU droplets resulting in a 0. 3–3 wt% increase.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/app.52466


Anti‐Inflammatory Effects of Opuntia Milpa Alta Polysaccharides Fermented by Lactic Acid Bacteria in Human Keratinocyte HaCaT Cells

Opuntia milpa alta polysaccharides are bioactive compounds extracted from Opuntia milpa alta and widely used in disease prevention, but the exact mechanism of ODP on inflammatory injury remains unclear. The stimulated cells were treated with different amounts of ODP, and the stimulated cells were then used to cause inflammation in HaCaT cells. The LPS stimulation of HaCaT cells was found to increase cell viability, increase cell proliferation, increase cell apoptosis, and raise the expression of COX-2, IL-6, IL-8, and TNF. In conclusion, our experimental findings show that ODP fermented by lactic acid bacteria can be used as an anti-inflammatory agent.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/cbdv.202100923


Effect of lactic acid fermentation on the nutritional quality and consumer acceptability of African nightshade

Abstract African nightshade is one of many underexploited and neglected indigenous vegetables. In Solanum villosum and Solanum scabrum, this research investigated the effect of lactic acid fermentation on nutritional and sensory quality. For 15 days and 120 h, Lactobacillus plantarum LP90 and Leuconostoc mesenteroides LM58 were fermented and controlled fermented conditions. LAF's notable increase in carotene in pickles and their relish items increased by 2. 6–5 and 1. 6–4. 8 percent respectively. Vitamin C dropped by 88. 33%–95. 90% in all pickles and relish products. LAF, on the other hand, showed an increase in minerals content and reduced tannin and oxalate levels. Consumers were highly recommended by LAF relish products, with S. villosum-controlled fermented relish leading. After 6 months of storage, all fermented relishes were stable at ambient and refrigeration temperatures.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/fsn3.2912


Fabrication of conductive and superhydrophobic poly(lactic acid) nonwoven fabric for human motion detection

In recent years, piezoresistive pressure sensors with superhydrophobicity have drew a lot of interest. By a simple dipping technique, tannic acid was first introduced on the surface of poly nonwoven fabric herein. Silver particles were in situ produced on the surface to create roughness with the TA's reduction function, as shown by immersionizing the fabric in a silver nitrate aqueous solution. Finally, nlauryl mercaptan was grafted on Ag particles via Ag–S bonds to produce low surface energy, and a nonwoven fabric was produced, with a strong, superhydrophobic PLA nonwoven fabric. The obtained CSPLA nonwoven fabric had a 150. 3 degree maximum water contact angle.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/app.52453


Lactic acid bacteria isolated from Kazakh traditional fermented milk products affect the fermentation characteristics and sensory qualities of yogurt

Abstract: Lactic acid bacteria play a vital role in the production of traditional fermented milk products's taste, texture, and fragrance. Continuous subculture stability, as well as optimal acidification and coagulation capabilities, were found by Five LABs from Kazakh traditionally produced dairy products, as well as proper acidification and coagulation capability. L. plantarum-prepared Yogurts with L. plantarum were more condensed and textural integrity than those with P. pentosaceus and E. faecium. The determination of the volatile compound profiles revealed a greater number of volatile compounds than the control. The sensory analysis revealed promising overall sensory quality scores for the yogurts made with 1–12 and 1–15.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/fsn3.2755


The effect of poly(lactic‐co‐glycolic acid) conduit loading insulin‐like growth factor 1 modified by a collagen‐binding domain on peripheral nerve injury in rats

Patients' daily lives are greatly affected by this peripheral nerve injury. In a rat sciatic nerve injury model, the conduit's physical character was investigated by scanning electron microscopy, and the static water contact angle, release rate, and nerve regeneration capability of the conduit were tested. The pathological examination results for the sciatic nerve and gastrocnemius muscle in the group treated with the PLGA/Col/CBD/IGF-1 conduit were higher than those in the other three groups. In short, this report demonstrated the positive results of CBDIGF1 in nerve regeneration.

Source link: https://onlinelibrary.wiley.com/doi/10.1002/jbm.b.35064

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions