Non-biodegradable plastics are continually amassing landfills and oceans worldwide while creating severe environmental issues and hazards to animal and human health. Plastic pollution has resulted in the death of millions of seabirds and aquatic animals. The worldwide production of plastics in 2020 has increased by 36% since 2010. This has generated significant interest in bioplastics to supplement global plastic demands. Bioplastics have several advantages over conventional plastics in terms of biodegradability, low carbon footprint, energy efficiency, versatility, unique mechanical and thermal characteristics, and societal acceptance. Bioplastics have huge potential to replace petroleum-based plastics in a wide range of industries from automobiles to biomedical applications. Here we review bioplastic polymers such as polyhydroxyalkanoate, polylactic acid, poly-3-hydroxybutyrate, polyamide 11, and polyhydroxyurethanes; and cellulose-based, starch-based, protein-based and lipid-based biopolymers. We discuss economic benefits, market scenarios, chemistry and applications of bioplastic polymers.

/pdf/innovations-in-applications-and-prospects-of-bioplastics-and-1ygeanpo20.pdf

Innovations in applications and prospects of bioplastics and biopolymers: a review

https://iopscience.iop.org/article/10.1088/1757-899X/980/1/012045/pdf

Empty fruit bunches, potential fiber source for Indonesian pulp and paper industry

Potential valorization of oil palm fiber in versatile applications towards sustainability: A review

Cellulose is one of the renewable resources and has become a core target among researchers in recent times to make sustainable biopolymer-based materials. The extraction of cellulose from oil palm empty fruit bunch (OPEFB) by using 4%-13% sodium hydroxide (NaOH) and undergoes bleaching process with 1.7% sodium chlorite solutions (NaOCl) has been done in this study. The maximum yield of cellulose (89.78%) was obtained with 4% NaOH. The effectiveness of NaOH treatment to obtain the cellulose was reflected in Fourier Transform Infrared (FTIR) analysis where the frequency of the C=C aromatic group of lignin resonated around 1600 cm−1 to 1590 cm−1 has been reduced in alkali treatment and disappeared after the bleaching treatment. Meanwhile, the peak for -OH group of cellulose and the -CH methylene group was observed at around 3330 cm−1 and 2900 cm−1 respectively. It was found that increasing the NaOH concentration increased the yield of cellulose to some extent.

The Effect of Sodium Hydroxide (NaOH) Concentration on Oil Palm Empty Fruit Bunch (OPEFB) Cellulose Yield

Extraction of cellulose from oil palm empty fruit bunch using eco-friendly solvents for preparation of transparent cellulose thin film

There are growing interest to use cellulose as renewable material in order to replace non-renewable polymeric materials. Alteration and chemical modifications of the cellulose by oxidation is needed to improve its properties and functionality. The aim of this study was to evaluate oxidation effect of the cellulose from oil palm empty fruit bunch (OPEFB) using hydrogen peroxide in alkaline condition. Cellulose has been isolated and purified by sodium hydroxide method followed by sodium hypochlorite bleaching. The oxidation effect of the cellulose by hydrogen peroxide was investigated by component analysis of the lignocelluloses, visual analysis, physical and chemical properties. Fourier transform infrared spectroscopy was employed to evaluate the changes of functional groups. Digesting of the OPEFB by sodium hydroxide at temperature 160oC for 4 hours reduced lignin content from 22.58% to 16.60%, increase cellulose and hemicelluloses content from 60.76% to 73.87% and 25.86% to 30.95%, respectively. Treatment of the OPEFB pulp using sodium hypochlorite removed all residual lignin. Cellulose content was increased up to 90.86%. Degree of polymerization of the oxidized cellulose was reduced from 1997 to 658. Carboxyl groups of celluloses was significantly increased and confirmed by titration analysis. OPEFB cellulose fiber was damage and broken, meanwhile crystallinity of the cellulose was reduced. Keywords: cellulose, oxidation, oil palm empty fruit bunch, carboxyl group, crystallinity, physical properties Oksidasi Selulosa dari Tandan Kosong Kelapa Sawit menggunakan Hidrogen Peroksida dalam Kondisi Basa Abstrak Perhatian untuk memanfaatkan selulosa sebagai polimer terbarukan untuk menggantikan polimer tidak terbarukan mengalami peningkatan. Perubahan dan modifikasi kimia selulosa melalui proses oksidasi diperlukan untuk meningkatkan sifat dan fungsi selulosa. Penelitian ini bertujuan untuk mempelajari pengaruh oksidasi selulosa dari tandan kosong kelapa sawit (TKKS) menggunakan hidrogen peroksida dalam suasana basa. Selulosa diisolasi dan dimurnikan dengan metode natrium hidroksida dan dilanjutkan dengan pemutihan natrium hipoklorit. Efek oksidasi selulosa oleh hidrogen peroksida dievaluasi menggunakan analisis komponen lignoselulosa, analisis visual, sifat fisik dan kimia. Analisis spektroskopi inframerah (FTIR) digunakan untuk mengevaluasi perubahan gugus fungsional selulosa. Pemasakan TKKS dengan natrium hidroksida pada suhu160oC selama 4 jam mengurangi kandungan lignin dari 22,58% menjadi 16,60%, meningkatkan kandungan selulosa dari 60,76% menjadi 73,87% dan hemiselulosa dari 25,86% menjadi 30,95%. Perlakuan pulp TKKS menggunakan natrium hipoklorit menghilangkan semua sisa lignin. Kandungan selulosa meningkat hingga 90,86%. Oksidasi selulosa dengan hidrogen peroksida menurunkan derajat polimerisasi selulosa dari 1997 menjadi 658. Gugus karboksil selulosa meningkat secara signifikan dan dikonfirmasi dengan analisis titrasi. Analisis visual menunjukkan kerusakan serabut selulosa, sesuai dengan pengurangan kristalinitas selulosa. Kata kunci: selulosa, oksidasi, tandan kosong kelapa sawit, gugus karboksil, kristalinitas, sifat fisik

/pdf/oxidation-of-cellulose-from-oil-palm-empty-fruit-bunch-using-y6tv23197h.pdf

Oxidation of Cellulose from Oil Palm Empty Fruit Bunch Using Hydrogen Peroxide in Alkaline Condition

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Oxidation of Cellulose from Oil Palm Empty Fruit Bunch Using Hydrogen Peroxide in Alkaline Condition