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Journals / Journal of Amasya University the Institute of Sciences and Technology / 2024 / Volume: 5 Issue: 2

Production of potassium hydroxide-activated biochar and its use as a filler in polylactic acid for food packaging

Filiz Uğur Nigiz(ÇANAKKALE ONSEKİZ MART ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ, KİMYA MÜHENDİSLİĞİ BÖLÜMÜ)0000-0003-0509-8425
Zeynep İrem Özyörü(ÇANAKKALE ONSEKİZ MART ÜNİVERSİTESİ)0009-0005-9587-9090
Serhat Balcı(ÇANAKKALE ONSEKİZ MART ÜNİVERSİTESİ)0009-0002-9619-4489
Pages
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Publication Date
2024-12-31
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Also, the film shows good antimicrobial activity toward gram-negative bacteria.

📌 3 Key Takeaways

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Objective & Hypothesis:Petroleum-containing packaging materials of the past and present have created serious ecological problems for the environment due to their resistance to biodegradation.
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Key Findings & Data:In this study, biomasses of olive pruning wastes, which are abundant in the Çanakkale region, were converted into biochar (BC) by slow pyrolysis, and their characterization was examined by adding them to PLA at different rates (5%, 10%, 15%, 20% by mass).
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Conclusion & Impact:Also, the film shows good antimicrobial activity toward gram-negative bacteria.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Biochar from olive branches · polylactic acid film · antimicrobial activity

Abstract

Petroleum-containing packaging materials of the past and present have created serious ecological problems for the environment due to their resistance to biodegradation. In this context, researches have been conducted to promote the use of biodegradable films as an alternative to packaging materials. Among various biopolymers, poly(lactide) (PLA) has found application in the food industry owing to its promising properties and is currently one of the most industrially produced bioplastics. In this study, biomasses of olive pruning wastes, which are abundant in the Çanakkale region, were converted into biochar (BC) by slow pyrolysis, and their characterization was examined by adding them to PLA at different rates (5%, 10%, 15%, 20% by mass). Specific surface area analysis (BET), scanning electron microscopy (SEM) analysis, biochar yield, ash content, surface contact angles, and antimicrobial activity of film depending on the BC concentration were evaluated. As a result, potassium hydroxide (KOH) activated BC was successfully synthesized with a surface area of 1022 m2/g. The hydrophobicity of films was improved with increasing BC ratio. Also, the film shows good antimicrobial activity toward gram-negative bacteria.

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Cite This Article

Nigiz, F. U., Özyörü, Z. İ., Balcı, S. (2024). Production of potassium hydroxide-activated biochar and its use as a filler in polylactic acid for food packaging. Journal of Amasya University the Institute of Sciences and Technology, Volume: 5 Issue: 2. https://doi.org/10.54559/jauist.1541318

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