Hidrolisis Limbah Kulit Nanas dengan Asam Asetat Menggunakan Metode Ultrasound-Assisted Acid Hydrolysis (UAAH) untuk Produksi Oligosakarida

Sasongko, Ashadi; Gotama, Bangkit

doi:10.32487/jst.v5i2.747

Cited by 2 publications

(5 citation statements)

References 2 publications

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“…The use of bases for hydrolysis provides a caramelization effect on the polysaccharide structure. Apart from that, the addition of an acid catalyst aims to speed up the reaction because the hydrolysis reaction using water is slow [7]. Cellulose, which is converted into reducing sugar (glucose).…”

Section: Introducingmentioning

confidence: 99%

“…Utilization of ultrasonic waves can increase mass transfer and shorten reaction time [8]. Furthermore, ultrasonic waves can extract and hydrolyze natural materials, which have been carried out in several studies, such as the hydrolysis of pineapple peel waste [7], acid hydrolysis and ultrasonic waves on bamboo stems [9], carrageenan depolymerization process [10], Ant nest flavonoid extraction [11], and acid hydrolysis of palm leaves [12]. Cavitation bubbles are created from ultrasonic waves in solution material.…”

Section: Introducingmentioning

confidence: 99%

“…When the bubble bursts close to the cell wall, a shock wave and liquid jets will form which will rupture the cell wall. The rupture of the cell wall will cause the components inside the cell to come out and mix with the solution [7], [11], [13].…”

Section: Introducingmentioning

confidence: 99%

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Fermented Sugar From Ultrasound-Assisted Acid Hydrolysis Berenuk Fruit (Crecentia Cujete L.)

Indriyani,

Lumbantoruan,

Musfika

et al. 2024

Reka Buana

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Berenuk fruit (Crecentia Cujete L) is a non-food plant often found in tropical areas. Berenuk has quite a high content of carbohydrates and its derivatives. Among them are 18.61% carbohydrates, 59.86% sucrose, 25.09% fructose, and 18.24% galactose, so berenuk fruit has the potential to be a source or ingredient for bioethanol. The bioethanol process from biomass goes through several steps: raw material preparation, hydrolysis process and fermentation. The hydrolysis process is the process of breaking down carbohydrate into glucose units which are connected by β-1,4 glycosidic bonds. Another method of breaking sugar polymers can be done using alternative energy such as ultrasonic waves (50Hz, 50W) or microwaves. In this research, an ultrasonic-assisted acid hydrolysis process was carried out. The type of acid used is concentrated sulfuric acid (H2SO4). Ingredients ratio 1:20 (w/v) berenuk powder sample with sulfuric acid. The sulfuric acid concentrations used were 1 M, 2 M, and 3 M. Hydrolysis times were 40 minutes, 60 minutes, and 80 minutes at a temperature of 1000C. The results of research that has been carried out on the preparation process of bereneuk fruit have an average water content of 97.44%, so treatment is required before proceeding to the hydrolysis and fermentation process, namely by drying the drying process is carried out directly in sunlight for seven days, then continued by heating the oven for 8 hours at 1000C. In the ultrasonic wave assisted hydrolysis process carried out at a H2SO4 concentration of 3 M, a hydrolysis time of 80 minutes, and a temperature of 1000C produces 22.20% glucose.

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Section: Introducingmentioning

confidence: 99%

Section: Introducingmentioning

confidence: 99%

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Fermented Sugar From Ultrasound-Assisted Acid Hydrolysis Berenuk Fruit (Crecentia Cujete L.)

Indriyani,

Lumbantoruan,

Musfika

et al. 2024

Reka Buana

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“…Sebelum menjadi asam asetat, gula yang terdapat dalam bahan alami terlebih dahulu diubah menjadi etanol dengan bantuan ragi, kemudian etanol dioksidasi menjadi asam asetat [3]. Beberapa bahan baku alami yang dapat digunakan dalam pembuatan asam asetat, diantaranya, salak dan pisang [4], buah mangrove pedada [5], kulit durian [3], pepaya burung [6], air kelapa [7] dan kulit nanas [8]. Metode fermentasi maupun hidrolisis zat berupa polimer glukosa pada bahan-bahan alami dapat menghasilkan produk berupa asam asetat.…”

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“…Nanas dimanfaatkan masyarakat Indonesia dalam sektor pangan, selain dapat dikonsumsi langsung nanas juga dapat dijadikan bahan olahan [9] seperti di industri makanan maupun minuman [10]. Di Provinsi Kalimantan Timur, luas lahan petani yang digunakan untuk ditanami nanas seluas 8,572 hektar dengan produksi 7.206 ton/tahun [8].…”

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Optimalisasi Kadar Asam Asetat Ananas Comosus l dengan Penambahan Induk Cuka

Fitria¹,

Septiani²,

Nuhardin³

2021

Jurnal Teknik Juara, Aktif, Global, Optimis

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Ananas comosus L. (Pineapple) is one of the superior fruit commodities in Indonesia. The amount of production in 2016 pineapples placed fourth after bananas, oranges and mangoes which amounted to 1.4 million tons/year. Pineapple production for East Kalimantan, Balikpapan city has an area of 8,572 hectares of pineapple with a production of 7,206 tons of pineapple. Pineapple skin contains 17.53% carbohydrates and 13.65% sugar. This led researchers to develop the manufacture of acetic acid from the skin waste of Ananas comosus L. The research method consists of materials used namely, pineapple skin, water, granulated sugar, yeast, vinegar, ammonium sulfate, oxalic acid, sodium hydroxide, pp indicators and aquades obtained from STTI Bontang laboratory. The working procedure of this study consists of 3 stages of the method: the first fermentation stage with the addition of Saccharomyces cerevisiae, the second fermentation stage with variations in the addition of the parent vinegar and the calculation of acetic acid levels with time intervals of 2 days /sample (days 16, 18, 20, 22 and 24). The third stage is carried out by alkaline method. Optimum results from research with the main variation of vinegar and fermentation time were obtained on the 20th day with the addition of a 2.3 mL vinegar master obtained a acetic acid content of 6.24 g/mL. Further researchers are expected to develop better analytical methods to make the concentration of acetic acid obtained more optimal.

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Hidrolisis Limbah Kulit Nanas dengan Asam Asetat Menggunakan Metode Ultrasound-Assisted Acid Hydrolysis (UAAH) untuk Produksi Oligosakarida

Cited by 2 publications

References 2 publications

Fermented Sugar From Ultrasound-Assisted Acid Hydrolysis Berenuk Fruit (Crecentia Cujete L.)

Fermented Sugar From Ultrasound-Assisted Acid Hydrolysis Berenuk Fruit (Crecentia Cujete L.)

Optimalisasi Kadar Asam Asetat Ananas Comosus l dengan Penambahan Induk Cuka

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