Choi Inyoung, Chang Yoonjee, Shin So-Hyang, Joo Eunmi, Song Hyun Ju, Eom Haeyoung, Han Jaejoon
Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea.
Institute of Control Agents for Microorganisms, Korea University, Seoul 02841, Korea.
Int J Mol Sci. 2017 Jun 15;18(6):1278. doi: 10.3390/ijms18061278.
Biopolymer films based on apple skin powder (ASP) and carboxymethylcellulose (CMC) were developed with the addition of apple skin extract (ASE) and tartaric acid (TA). ASP/CMC composite films were prepared by mixing CMC with ASP solution using a microfluidization technique to reduce particle size. Then, various concentrations of ASE and TA were incorporated into the film solution as an antioxidant and an antimicrobial agent, respectively. Fourier transform infrared (FTIR), optical, mechanical, water barrier, and solubility properties of the developed films were then evaluated to determine the effects of ASE and TA on physicochemical properties. The films were also analyzed for antioxidant effect on 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity and antimicrobial activities against , , , and . From the results, the ASP/CMC film containing ASE and TA was revealed to enhance the mechanical, water barrier, and solubility properties. Moreover, it showed the additional antioxidant and antimicrobial properties for application as an active packaging film.
基于苹果皮粉（ASP）和羧甲基纤维素（CMC）的生物聚合物薄膜，通过添加苹果皮提取物（ASE）和酒石酸（TA）制成。ASP/CMC复合薄膜是采用微流化技术将CMC与ASP溶液混合以减小粒径而制备的。然后，分别将不同浓度的ASE和TA作为抗氧化剂和抗菌剂加入到薄膜溶液中。随后对所制备薄膜的傅里叶变换红外光谱（FTIR）、光学、机械、阻水和溶解性等性能进行评估，以确定ASE和TA对其物理化学性能的影响。还分析了薄膜对2,2-二苯基-1-苦基肼自由基清除活性的抗氧化作用以及对[具体菌种1]、[具体菌种2]、[具体菌种3]和[具体菌种4]的抗菌活性。结果表明，含有ASE和TA的ASP/CMC薄膜的机械性能、阻水性能和溶解性得到了增强。此外，它还具有额外的抗氧化和抗菌性能，可作为活性包装薄膜应用。
