Karakteristik Kulit Kopi Robusta Hasil Samping Pengolahan Metode Kering Dari Perkebunan Kopi Rakyat Di Jawa Timur

Wardhana, Danu Indra; Ruriani, Eka; Nafi, Ahmad

doi:10.32528/agritrop.v17i2.2569

Cited by 9 publications

(11 citation statements)

References 4 publications

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“…In another study, robusta coffee pulp from Jember contained 0.883% fat content, 0.925% from Banyuwangi and 1.1% from Malang. The difference in fat content in each coffee pulp is explained by the different temperature, climate and cultivation conditions for each coffee [20].…”

Section: Fat Contentmentioning

confidence: 99%

“…et al [19], arabica coffee pulp contained a higher protein, namely 13.40%. Robusta coffee pulp from Jember contained 6.77% protein, from Banyuwangi 7.82% and from Malang, namely 7.99% [20]. The difference in protein content in the coffee pulp can be influenced by the type of coffee and the elevation (altitude of the place) of coffee cultivation.…”

Section: Protein Contentmentioning

confidence: 99%

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Antioxidant activity and physicochemical composition of coffee pulp obtained from three coffee varieties in Aceh, Indonesia

Rohaya

Anwar

Abubakar

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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This study aims to analyze the antioxidant activity and physicochemical composition of coffee pulp from the three coffee varieties in Aceh Province. This research is exploratory. The pulp of arabica, robusta, and liberica coffee was sun-dried to produce cascara. The properties of cascara including antioxidants, total soluble solids, total titratable acidity, pH, moisture content, ash content, fat content, protein content, crude fiber, and total phenol were evaluated. The results showed that the pulp of arabica, robusta, and liberica coffee could reduce free radicals using the DPPH method with a very strong intensity, where the IC50 produced was ranged 33.95 to 44.94 ppm (very strong category ≤ 50 ppm). The results of the physicochemical analysis included for total soluble solids (TSS) at 0.83 − 16.00°Brix; total titratable acidity 0.001− 0.160%; pH 4.68 − 5.59; moisture content 67.61−79.49%; ash content 1.39 − 3.74%; fat content 0.3 − 1.01%; protein content 4.08 − 7.88%; crude fiber content 13.79 − 38.51% and total phenol 21.99 − 80.00 mg GAE/100g sample. These results can be the basis for diversifying the utilization of coffee pulp waste into useful products such as functional drinks like cascara and kombucha.

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Section: Fat Contentmentioning

confidence: 99%

Section: Protein Contentmentioning

confidence: 99%

Antioxidant activity and physicochemical composition of coffee pulp obtained from three coffee varieties in Aceh, Indonesia

Rohaya

Anwar

Abubakar

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Mineral merupakan unsur kimia yang terdapat pada suatu material selain karbon, oksigen, nitrogen, dimana kandungan tersebut dibutuhkan oleh tubuh. Apabila kadar abu pada material tergolong tinggi menandakan material tersebut memiliki kualitas yang kurang baik [18] . Kadar abu dari selulosa limbah cangkang biji pala yang dihasilkan rata-rata 3,04%.…”

Section: Isolasi Selulosa 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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“…Usually, they cope by burning the coffee husk [5]. Robusta coffee husk contains 6,34% hemicellulose, 15,38% cellulose, 33,79% lignin, 32,38% crude fiber, 1,1% fat, 76,83% carbohydrates, 5,6% ash, and 8,4% water [6].…”

Section: Introductionmentioning

confidence: 99%

The effect of adding NaOH and fermentation time on Robusta coffee husk (Coffea canephora) bioethanol production with SSF (Simultaneous Sachraffication and Fermentation) method

Listiandari¹,

Herdyastuti²

2022

World J. Adv. Res. Rev.

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Robusta coffee husk is one of the largest agricultural wastes and contains lignocellulose as a raw material for bioethanol production. Lignin in Robusta coffee husk can interfere with the enzymatic hydrolysis process, so a delignification process using NaOH solution is needed to remove it. This research aimed to determine the effect of adding NaOH and fermentation time on the bioethanol production from Robusta coffee husks using the SSF (Simultaneous Saccharification and Fermentation) method. Removal of lignin using NaOH with various concentrations of 6, 8, and 10% and fermentation time for 24, 48, 72, 96, and 120 hours. The cellulose, hemicellulose, and lignin contents in the delignification results were tested using the Chesson method. The saccharification and fermentation steps used cellulase enzymes and Saccharomyces cerevisiae. Bioethanol levels were analyzed using GCMS. The results showed that the optimal concentration of NaOH to remove lignin was 10% which generated 17.40% lignin content, 20.81% cellulose, and 3.79% hemicellulose. The highest bioethanol content was 100% obtained with a fermentation time of 72 hours. The data showed that adding of NaOH and fermentation time affected bioethanol production.

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Karakteristik Kulit Kopi Robusta Hasil Samping Pengolahan Metode Kering Dari Perkebunan Kopi Rakyat Di Jawa Timur

Cited by 9 publications

References 4 publications

Antioxidant activity and physicochemical composition of coffee pulp obtained from three coffee varieties in Aceh, Indonesia

Antioxidant activity and physicochemical composition of coffee pulp obtained from three coffee varieties in Aceh, Indonesia

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

The effect of adding NaOH and fermentation time on Robusta coffee husk (Coffea canephora) bioethanol production with SSF (Simultaneous Sachraffication and Fermentation) method

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