Sintesis Selulosa Asetat dari Limbah Pengolahan Agar

Nurhayati, Nurhayati; Kusumawati, Rinta

doi:10.15578/jpbkp.v9i2.103

Cited by 8 publications

(10 citation statements)

References 18 publications

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“…Cellulose is the main component of plant cell walls. The content of cellulose obtained was lower than the previous research [28]. One of the factors for cellulose content is determined by the type of plant used as a source of cellulose.…”

Section: Fraction Contentcontrasting

confidence: 59%

“…Nurhayati and Kusumawati [28] Fauziah [29] Water . 1, it can be seen that, the results of the water, ash and cellulose contents of the raw material of seaweed solid waste were 4.65%, of 47.44%, and 14.79%, respectively. According to another research, the water content showed lower value compared to the previous research [28][29]. The water content in the sample was influenced by the type of seaweed waste and the level of dryness of the samples.…”

Section: Fraction Contentmentioning

confidence: 99%

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Bioethanol production from seaweed solid waste biomass of agar processing

Winarni¹,

Uju

Santoso

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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This paper describes about the potential application of renewable energy sources from biomass (seaweed waste) to replace fossil fuels combustion which produced CO2 emission and heavy metal pollution. The objective of the research is to utilize the seaweed solid waste from agar production industry for bioethanol feedstock. The enzymatic method was carried out for glucose production with the addition 1% of surfactant Tween 20 during the saccharification process of three kinds of substrate concentration (20, 25, 30% dw) and 10 FPU/g substrate for the cellulose concentration and used S. cerevisae as yeast in the fermentation process for bioethanol production. The result showed that the highest reducing sugar value (122.4 mg/mL) and 2.86% for the bioethanol content were from 30% dw treatment of substrate concentration of solid agar waste. Therefore, the waste from agar industry is a potential raw material to be used as biofuel and could reduce the heavy metal problems.

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Section: Fraction Contentcontrasting

confidence: 59%

Section: Fraction Contentmentioning

confidence: 99%

Bioethanol production from seaweed solid waste biomass of agar processing

Winarni¹,

Uju

Santoso

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…This phenomenon indicated the formation of cellulose acetate compounds with a sharp peak at wave number 1737.05 cm −1 and the decrease in the intensity of the OH group could be caused by the substitution of the acetyl group. Nurhayati and Kusumawati (2014) explained the cellulose acetate compound was formed with a sharp peak at a wavenumber of 1755 cm −1 and the OH intensity decreased due to the substitution of the acetyl group.…”

Section: Characteristics Results Of Kapok Fiber Cellulose Acetatementioning

confidence: 99%

Effect of Plasticizer and Concentration on Characteristics of Bioplastic Based on Cellulose Acetate from Kapok (Ceiba pentandra) Fiber

Rahmatullah

Putri

Rendana

et al. 2022

Sci.Technol.Indonesia

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The synthetic plastics that made from petroleum material have been widely used in all industrial sectors. They cause some serious problems for the environment. There are semi-synthetic plastics or biodegradable plastics which are made from natural polymers such as cellulose to mitigate this problem. Biodegradable plastics can fulfill the needs of society because they can be decomposed easily into the environment. This research used laboratory experimental methods through several processes: kapok fiber isolation, cellulose acetate production and purification, and manufacture of bioplastics. The characteristics of bioplastics was analyzed using some parameters such as density, tensile strength, elongation, Young's modulus, water absorption, biodegradability, compound group analysis using Fouier-Transform Infrared Spectrometer (FTIR) and bioplastic morphology analysis by using Scanning electrone microscopy (SEM). This study aimed to determine the effect of the plasticizer type and concentration on the bioplastics characteristics that was divided into several different concentrations of glycerol and sorbitol plasticizers (20%, 30%, and 40%). The fabrication of composite bioplastics used the cellulose acetat from kapok fiber, starch, and types of plasticizer (glycerol, and sorbitol). The results of the study showed that the addition of different plasticizers, such as glycerol and sorbitol gave distinct effects on the bioplastics product characteristics. The optimum concentration of glycerol addition affected the bioplastic characteristics with the best results were 40% concentration generate density of 0.836 g/mL, tensile strength of 0.818 MPa, water absorption value of 22.23%, and degradation plastic mass about 39.7%. The addition of sorbitol also affected the bioplastic characteristics, where the best results were 40% concentration produced bioplastic density of 0.941 g/mL, percent elongation at 3.94%, young’s modulus of 0.726 MPa, and degradarion mass of 32.05%. The morphology of bioplastic showed the high homogeneity on concentrations of 40% glycerol and 30% sorbitol.

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“…Selulosa standar [26] Selulosa limbah cangkang biji pala Gambar 3. Reaksi sintesis selulosa asetat [41] Selulosa asetat dapat digolongkan menjadi tiga golongan diantaranya monoasetat, diasetat dan triasetat. Selulosa monoasetat adalah selulosa asetat yang memiliki satu gugus asetil yang tersubsitusi pada struktur selulosa, sedangkan selulosa diasetat adalah jenis selulosa asetat yang memiliki dua gugus asetil yang tersubsitusi pada struktur selulosa, dan triasetat adalah selulosa asetat yang memiliki tiga gugus astil yang tersubsitusi pada selulosa [37], [38], [12] .…”

Section: Sintesis Selulosa Asetat Limbah Cangkang Biji Palaunclassified

“…Asam asetat anhidrida mengalami protonisasi dengan adanya asam sulfat sehingga menghasilkan ion karbium. Ion karbium yang dihasilkan akan bereaksi dengan selulosa menghasilkan selulosa asetat [41] . Rekasi sintesis selulosa asetat dari selulosa dan asam asetat dapat dilihat pada gambar 3.…”

Section: Sintesis Selulosa Asetat Limbah Cangkang Biji Palaunclassified

Karakterisasi Selulosa dan Selulosa Asetat dari Limbah Cangkang Biji Pala (Myristica Fragransi) Aceh Selatan

Bhernama

2023

J.Ris.Kim.

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Nutmeg seed shell waste contains 21.34% cellulose, 12.93% lignin, 53.67% crude fiber, 6.16% ash, 0.11% phenol, and 0.38% carbonyl. The content of cellulose and lignin in the nutmeg shell waste is quite large, so it can be used as something of value. Cellulose can be synthesized into cellulose acetate. The use of cellulose acetate is very diverse, such as in the film industry, biodegradable plastics, paper coatings, metals, and glass, as an adhesive for topographic films as the main raw material in membrane synthesis processes. Therefore, it is necessary to characterize cellulose and cellulose acetate from nutmeg shell waste (Myristica fragrance) in South Aceh. The method used is in the form of cellulose isolation using the soxhletation process, then bleaching and hydrolysis processes are carried out, then it is synthesized into cellulose acetate. Characterization of cellulose by determining % yield, cellulose content, ash content, moisture content, FTIR, XRD. Characterization of cellulose acetate by determining the acetyl content and FTIR. The characterization results obtained ash content of 3.04%, moisture content of 15.55%, yield of 35.36% and 5.29% cellulose content. XRD characterization obtained a diffractogram peak at an angle of 2θ = 22.2111o, a crystallinity of 96% and a crystal size of 0.5292 nm. Characterization of the functional groups of cellulose in the form of stretching O-H, C-H and C-O groups which are at wave numbers 3331.04 cm-1, 2871.29 cm-1 and 1024.96 cm-1. Functional groups of cellulose acetate in the form of O-H, C=O, acetyl C-O, bent C-H and C-O groups are at wave numbers 3348.82 cm-1, 1719.61 cm-1, 1227.23 cm-1, 1369.50 cm-1 and 1028.62. The acetyl content is 39.18% and the degree of substitution is 2.65%.

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Sintesis Selulosa Asetat dari Limbah Pengolahan Agar

Cited by 8 publications

References 18 publications

Bioethanol production from seaweed solid waste biomass of agar processing

Bioethanol production from seaweed solid waste biomass of agar processing

Effect of Plasticizer and Concentration on Characteristics of Bioplastic Based on Cellulose Acetate from Kapok (Ceiba pentandra) Fiber

Karakterisasi Selulosa dan Selulosa Asetat dari Limbah Cangkang Biji Pala (Myristica Fragransi) Aceh Selatan

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