نتایج جستجو برای: polylactic acid pla

تعداد نتایج: 751272  

Journal: :journal of food quality and hazards control 0
n. shavisi department of food sciences and technology, faculty of health, kermanshah university of medical sciences, kermanshah, iran a. akhondzadeh basti department of food hygiene, faculty of veterinary medicine, university of tehran, tehran, iran a. khanjari department of food hygiene, faculty of veterinary medicine, university of tehran, tehran, iran a. misaghi department of food hygiene, faculty of veterinary medicine, university of tehran, tehran, iran y. shahbazi department of food hygiene and quality control, faculty of veterinary medicine, razi university, kermanshah, iran a. hajjar bargh department of food sciences and technology, faculty of food sciences, islamic azad university, science and research branch, tehran, iran

background: innovative bioactive films incorporated with antimicrobial agents have been recently developed for food preservation. the aim of this study was to evaluate antibacterial activity of polylactic acid (pla) films incorporated with ziziphora clinopodioides essential oil (zeo) and ethanolic propolis extract (epe) against some common food-borne pathogens. methods: the volatile chemical co...

2017
Terri Iwata John Morton Jessica Snyder Xuan Ge

Poloxamer 407 is a thermoreversible hydrogel frequently used as a carrier for polymer formulations in delayed-absorption drug studies, with limited toxicity in young mice. We gave six 24-month-old C57BL/6nia male mice each a subcutaneous injection of polylactic acid (PLA)/polyglycolic acid (PGA) copolymer biodegradable microparticles mixed with poloxamer 407 at a dose of 1.1 g/kg and 6 g/kg, re...

2016
Hyun-Ju Yang Kyung Bin Song

Polylactic acid (PLA) is a biodegradable and renewable polymer, which represents a valuable alternative to plastic packaging films, often associated with environmental problems. In this study, we tested the suitability of PLA as a biodegradable packaging film and assessed the antimicrobial activity of lemongrass oil (LO), incorporated into the PLA film in different concentrations. To obtain the...

2015
Rangrang Fan Aiping Tong Xiaoling Li Xiang Gao Lan Mei Liangxue Zhou Xiaoning Zhang Chao You Gang Guo

Intraperitoneal chemotherapy was explored in clinical trials as a promising strategy to improve the therapeutic effects of chemotherapy. In this work, we developed a biodegradable and injectable drug-delivery system by coencapsulation of docetaxel (Doc) and LL37 peptide polymeric nanoparticles (Doc+LL37 NPs) in a thermosensitive hydrogel system for colorectal peritoneal carcinoma therapy. First...

Journal: :Journal of biotechnology 2011
Yu Kyung Jung Sang Yup Lee

Polylactic acid (PLA) is one of the promising biodegradable polymers, which has been produced in a rather complicated two-step process by first producing lactic acid by fermentation followed by ring opening polymerization of lactide, a cyclic dimer of lactic acid. Recently, we reported the production of PLA and its copolymers by direct fermentation of metabolically engineered Escherichia coli e...

Journal: :Materials science & engineering. C, Materials for biological applications 2016
Zeynep Aytac Semran Ipek Kusku Engin Durgun Tamer Uyar

Cyclodextrin-inclusion complexes (CD-ICs) possess great prominence in food and pharmaceutical industries due to their enhanced ability for stabilization of active compounds during processing, storage and usage. Here, CD-IC of gallic acid (GA) with hydroxypropyl-beta-cyclodextrin (GA/HPβCD-IC) was prepared and then incorporated into polylactic acid (PLA) nanofibers (PLA/GA/HPβCD-IC-NF) using ele...

Journal: :Coatings 2023

The search for new forms to extend foodstuffs’ shelf-life through the use of natural compounds and extracts continues grow among researchers industry. In this line thought, main objective work was develop, characterize evaluate effectiveness an active food packaging based on polylactic acid (PLA) incorporated with obtained from grape and/or pomegranate by-products. vitro, antioxidant methods we...

Journal: :ChemEngineering 2023

This study aims to evaluate the 3D-printed parts of different materials in terms achieved mechanical properties and surface characteristics. Fourteen infill patterns were employed 3D printing polylactic acid (PLA), enhanced (PLA+), polyethylene terephthalate glycol (PETG) materials. The printed specimens’ characteristics evaluated discussed. Ultimate tensile strengths, Young’s modulus, strain a...

Journal: :E3S web of conferences 2021

Polylactic acid (PLA) is one of the most extensively studied biodegradable materials. PLA a versatile material with excellent bio-compatibility, bioabsorbability, biodegradability, and low toxicity. As an environmentally friendly polymer, favored by researchers has explored many commercial applications, playing important role in medicine industry to replace traditional petrochemical-based polym...

2016

Submit Manuscript | http://medcraveonline.com Abbreviations: HPMC: Hydroxypropyl Methylcellulose; MC: Methylcellulose; PLGA: Poly (Lactide-co-Glycolide); CAP: Cellulose Acetate Phthalate; LCST: Low Critical Solution Temperature; UCST: Upper Critical Solution Temperature; PPO: Polypropylene Oxide; PEO: Polyethylene Oxide; MTA: Methozolamide; PNIPAAm: Poly (N-Isopropylacrylamide); GC: Guluronic A...

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