Production of seaweed derived bioplastics

Zaimis, Uldis; Ozolina, Sintija; Jurmalietis, Roberts

doi:10.22616/erdev.2021.20.tf370

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…A composite material made of algae and paper was developed in the paper recycling laboratory of the Liepaja University. Carrageenan was extracted from the red algae Furcellaria Lumbricalis, based on previous experiments conducted by the author [10] in the environmental chemistry laboratory, and seedling trays were manufactured.…”

Section: Methodsmentioning

confidence: 99%

Application of furcellaria lumbricalis in development of biodegradable seedling pots

Ozolina

2023

22nd International Scientific Conference Engineering for Rural Development Proceedings

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The use of plastic pots in gardening has been prevalent since the 1960s, and since then the demand for such products has significantly increased. However, the negative impact of plastic pot usage on plants and the environment has led to the need for researching and developing new environmentally friendly and sustainable materials for gardening needs. A practical study was conducted to develop and test a new type of seedling pot made from algae Furcellaria lumbricalis and paper, which was compared to existing biodegradable pots made from peat-paper and paper, as well as a plastic pot for comparison. The study found that pots made from algae and paper showed better germination results than comparable products available in Latvia. The number of sprouted seedlings in each sample was counted, with each sample initially having 15 seeds. The best results were found in pots made of algae-paper, with a germination rate of 74.4%. The second-best results were found in pots made of peat-paper, with a germination rate of 59.4%. The third, were found in plastic pots, with a germination rate of 58.8%. The worst results were found in plain paper pots, with a germination rate of 47.2%. Additionally, the algae-paper pots exhibited the most favourable recovery from the stress test, with well-developed root systems, while specimens grown in plastic pots exhibited marked chlorosis. Thus, the study concludes that algae-paper pots are a promising option for biodegradable pots that can compete with plastic pots.

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Section: Methodsmentioning

confidence: 99%

Application of furcellaria lumbricalis in development of biodegradable seedling pots

Ozolina

2023

22nd International Scientific Conference Engineering for Rural Development Proceedings

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“…Gliserol yang digunakan yaitu 20% dari total karagenan dan amilum. Hal ini sesuai dengan pernyataan Zaimis et al (2021), bahwa 20% gliserol merupakan jumlah yang paling baik untuk meningkatkan elsastisitas bioplastik. Penambahan amilum dilakukan untuk meningkatkan karakteristik bioplastik diantaranya kuat tarik, elongasi, viskositas dan ketebalan.…”

Section: Kualitas Bioplastik Karagenan-amilumunclassified

Sifat Mekanik dan Ketebalan Bioplastik dari Kappaphycus alvarezii Menggunakan Variasi Konsentrasi Amilum dengan Pemlastis Gliserol

2023

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Plastik merupakan bahan yang banyak digunakan dalam kehidupan sehari-hari, tetapi mencemari lingkungan karena plastik tidak dapat diuraikan oleh lingkungan. Penelitian mengenai bioplastik diperlukan untuk bahan alternatif plastik yang mudah terurai. Karagenan dan amilum merupakan polisakarida yang berpotensi sebagai bahan pembuatan bioplastik. Tujuan dari penelitian ini untuk menentukan perbedaan karakteristik (ketebalan, kuat tarik dan elongasi) bioplastik berbahan dasar karagenan dan gliserol terhadap pertambahan konsentrasi amilum. Metode penelitian yang digunakan yaitu Eksperimental Laboratorium. Karagenan diperoleh dari ektraksi K. alvarezii yang berasal dari perairan Jepara, Jawa Tengah. Bioplastik dibuat dengan gelatinasi amilum (1; 2; 3; dan 4 g) dalam 50 ml akuades pada suhu 90ºC selama 15 menit dalam erlenmeyer menggunakan Hot Plate Stirrer. Gliserol 20% ditambahkan dan dihomogenkan selama 5 menit. Suhu diturunkan hingga 70ºC, selanjutnya karagenan 1 g dan akuades ditambahkan hingga volume 150 ml dihomogenkan selama 45 menit. Bioplastik dicetak dan dikeringkan di oven selama 18 jam pada suhu 50ºC. Hasil penelitian menunjukkan bahwa karakteristik bioplastik κ-karagenan dengan penambahan amilum yaitu memiliki kuat tarik 6,42-11,47 MPa, nilai elongasi 7,03-21,88% dan ketebalan 0,13-0,25 mm. Elongasi konsentrasi amilum 1 g telah memenuhi standar SNI. Parameter yang sesuai dengan standar Japanese Industrial Standard yaitu parameter kuat tarik dan ketebalan. Plastic is a material that is widely used in everyday life, but it pollutes the environment because plastic cannot be decomposed by the environment. Research on bioplastics needs to get alternative materials for plastics that are easily biodegradable. Carrageenan and starch are polysaccharides that have the potential as materials for making bioplastics. This study aimed to determine differences in characteristics (thickness, tensile strength, and elongation) of bioplastics based on carrageenan and glycerol because of increased starch concentration. The research method used is Experimental Laboratory. Carrageenan from the extraction of K. alvarezii from the waters of Jepara, Central Java. Bioplastics were prepared by gelatinization starch (1; 2; 3; and 4 g) in 50 ml of distilled water at 90ºC for 15 minutes in an Erlenmeyer using a Hot Plate Stirrer. Glycerol 20% was added and homogenized for 5 minutes. Lower the temperature to 70ºC, then add 1 g of carrageenan and distilled water until the volume is 150 ml, after that homogenize it for 45 minutes. The bioplastics were molded and dried in the oven for 18 hours at 50ºC. The results showed that the characteristics of κ-carrageenan bioplastic with the addition of starch had a tensile strength of 6.42-11.47 MPa, an elongation value of 7.03-21.88% and a thickness of 0.13-0.25 mm. The elongation of starch concentration of 1 g is in accordance with the SNI standard. Parameters that comply with the Japanese Industrial Standard are the tensile strength and thickness parameters.

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Marine-derived biopolymers as potential bioplastics, an eco-friendly alternative

Tennakoon¹,

Chandika²,

Yi³

et al. 2023

iScience

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Production of seaweed derived bioplastics

Cited by 3 publications

References 7 publications

Application of furcellaria lumbricalis in development of biodegradable seedling pots

Application of furcellaria lumbricalis in development of biodegradable seedling pots

Sifat Mekanik dan Ketebalan Bioplastik dari Kappaphycus alvarezii Menggunakan Variasi Konsentrasi Amilum dengan Pemlastis Gliserol

Marine-derived biopolymers as potential bioplastics, an eco-friendly alternative

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