Improving the viability of Lactobacillus plantarum LP90 by carboxymethylated dextran-whey protein conjugates: The relationship with glass transition temperature

Li, Wen; Zhao, Yunjiao; Zhao, Yuan; Li, Shunqin; Yun, Liyuan; Zhi, Zijian; Li, Rui; Wu, Tao; Sui, Wenjie; Zhang, Min

doi:10.1016/j.foodhyd.2022.108102

Cited by 10 publications

(3 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lactiplantibacillus plantarum ( Lp. plantarum ) encapsulated by freeze drying with whey protein isolate–carboxymethylated dextran conjugates prepared with prolonged Maillard reaction time showed an increasing higher survival ratio 13 . It is noted that raw materials and reaction time of MRPs affect probiotic survival.…”

Section: Introductionmentioning

confidence: 99%

“…plantarum) encapsulated by freeze drying with whey protein isolate-carboxymethylated dextran conjugates prepared with prolonged Maillard reaction time showed an increasing higher survival ratio. 13 It is noted that raw materials and reaction time of MRPs affect probiotic survival. Soy protein isolate (SPI), a natural plant protein, is of low cost and possesses strong gelling, good water-holding ability and adequate binding performance.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Application of soy protein isolate–xylose conjugates for improving the viability and stability of probiotics microencapsulated by spray drying

Liu

Guan

et al. 2023

J Sci Food Agric

View full text Add to dashboard Cite

BACKGROUNDProduction and consumption of probiotics need to meet many adverse stresses, which can reduce their health‐promoting effects on humans. Microencapsulation is an effective technique to improve the biological activity of probiotics and wall materials are also required during encapsulation. Application of Maillard reaction products (MRPs) in probiotic delivery is increasing.RESULTSThis work aims to study the effects of soy protein isolate (SPI)–xylose conjugates heated at different times on the viability and stability of probiotics. SPI–xylose MRPs formed after heat treatment based on changes in the browning intensity, sodium dodecyl sulfate–polyacrylamide gel electrophoresis and Fourier transform infrared spectroscopy. After heat treatment, α‐helix and β‐sheet contents of SPI–xylose mixture shifted from 11.3% and 31.3% to 6.4–11.0% and 31.0–36.9%, respectively, and the thermal stability slightly changed. During spray drying, except for MRP240@LAB, probiotic viability was higher in the MRP‐based probiotic microcapsules (21.36–25.31%) than in Mix0@LAB (20.17%). MRP‐based probiotic microcapsules had smaller particle sizes (431.1–1243.0 nm vs. 7165.0 nm) and greater intestinal digestion tolerance than Mix0@LAB. Moreover, the MRP‐based probiotic microcapsules showed better storability than Mix0@LAB and adequate growth and metabolism capacity.CONCLUSIONSPI–xylose Maillard reaction products are a promising wall material for probiotics microencapsulation, which can improve bacterial survivability during spray drying and enhance bacterial gastrointestinal digestion resistance. This study sheds light on preparing probiotic microcapsules with superior properties by spray drying. © 2023 Society of Chemical Industry.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of soy protein isolate–xylose conjugates for improving the viability and stability of probiotics microencapsulated by spray drying

Liu

Guan

et al. 2023

J Sci Food Agric

View full text Add to dashboard Cite

show abstract

“…In comparison to previous in-situ depolymerization strategies, microencapsulation offers the ability to deploy a more active and chemically diverse selection of catalysts, as well as to choose from an array of orthogonal stimuli by which the catalyst is released. − As we will show here, microencapsulation concepts can be leveraged to enable in-situ depolymerization of plastics, which, to our knowledge, has not yet been reported in the literature. To cite one example, the glass transition temperature ( T g ) of the encapsulant is a critical factor in the preservation of probiotics and other compounds by microencapsulation, with high survival rates observed below T g and vice versa . − …”

Section: Introductionmentioning

confidence: 99%

Chemical Recycling of Polybutadiene Rubber with Tailored Depolymerization Enabled by Microencapsulated Metathesis Catalysts

Warner,

Lassa,

Narcross

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

The effective management of plastic waste streams to prevent plastic land and water pollution is a growing problem that is also one of the most important challenges in polymer science today. Polymer materials that are stable over their lifetime and can also be cheaply recycled or repurposed as desired could more easily be diverted from waste streams. However, this is difficult for most commodity plastics. It is especially difficult to conceive this with intractable, cross-linked polymers such as rubbers. In this work, we explore the utility of microencapsulated Grubbs’ catalysts for the in-situ depolymerization and reprocessing of polybutadiene (PB) rubber. Second-generation Hoveyda-Grubbs catalyst (HG2) contained within glassy thermoplastic microspheres can be dispersed in PB rubber below the microsphere’s glass transition temperature (T g) without adverse depolymerization, evidenced by rubber with and without these microspheres obtaining similar shear storage moduli of ≈16 and ≈28 kPa, respectively. The thermoplastic’s T g can be used to tune the depolymerization temperature, via release of HG2 into the rubber matrix. For example, using poly(lactic acid) (PLA) vs polysulfone results in an 85 and 162 °C depolymerization temperature, respectively. Liquefaction of rubber to a mixture of small molecules and oligomers is demonstrated using a 0.01 mol % catalyst loading using PLA as the encapsulant. At that same catalyst loading, depolymerization occurs to a greater extent in comparison to two ex-situ approaches, including a conventional solvent-assisted method, where it occurs at roughly twice the extent at each given catalyst loading. In addition, depolymerization of the microsphere-loaded rubbers was demonstrated for samples stored under nitrogen for 23 days. Lastly, we show that the depolymerized products can be reprocessed back into solid rubber with a shear storage modulus of ≈32 kPa. Thus, we envision that this approach could be used to recycle and reuse cross-linked rubbers at the end of their product lifetime.

show abstract

Freeze‐Drying of Probiotics for the Incorporation in Functional Foods

Küçükata,

Kırtıl,

Ermiş

2024

Freeze Drying of Food Products

View full text Add to dashboard Cite

Improving the viability of Lactobacillus plantarum LP90 by carboxymethylated dextran-whey protein conjugates: The relationship with glass transition temperature

Cited by 10 publications

References 51 publications

Application of soy protein isolate–xylose conjugates for improving the viability and stability of probiotics microencapsulated by spray drying

Application of soy protein isolate–xylose conjugates for improving the viability and stability of probiotics microencapsulated by spray drying

Chemical Recycling of Polybutadiene Rubber with Tailored Depolymerization Enabled by Microencapsulated Metathesis Catalysts

Freeze‐Drying of Probiotics for the Incorporation in Functional Foods

Contact Info

Product

Resources

About