Enzim Laccase dari Edible Mushroom untuk Pemutihan Pati Sagu  Ramah Lingkungan

Reksohadiwinoto, Budhi Santoso; Rosmalawati, Syofi; Cahyana, Purwa Tri; Hariyanto, Bambang

doi:10.29122/jtl.v18i2.1790

Cited by 5 publications

(1 citation statement)

References 11 publications

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“…Kapang jenis Rhizopus sp memliki kemampuan untuk memproduksi enzim lakase. Reksohadiwinoto et al (2017) melaporkan bahwa aktivitas enzim lakase pada fermentasi dengan menggunakan Rhizopus oligosporus meningkat selama fermentasi. Pada hari ke-0 fermentasi, lakase tidak memiliki aktivitas, namun aktivitas meningkat menjadi 0,297 U/mL (hari ke-3) dan 3,55 U/mL (hari ke-6).…”

Section: Kadar Total Senyawa Fenolikunclassified

SENYAWA FENOLIK, ORYZANOL, DAN AKTIVITAS ANTIOKSIDAN BEKATUL YANG DIFERMENTASI DENGAN Rhizopus oryzae

Faizah

Kusnandar

Nurjanah

2020

jtip

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Rice b ran is a b y-product of milled rice. It contains b ioactive compounds, such as total phenolic compounds and -oryzanol known to have antioxidant activities. However, these b ioactive compounds are chemically b ound in the lignin matrix of the rice b ran. Fermentation process potentially releases the b ound forms of the active compounds to b ecome the free ones. In this research, the rice b rans of three varieties, i.e. Inpari 24 (red rice), inpari 30 (white rice), and koshihikari (white rice), were fermented using Rhizopus oryzae for 0, 24, 48, 72, 96 and 120 hours. Those showed highest antioxidant activities by DPPH assays were selected for further chemical composition analyses (moisture, ash, fat, protein, and carb ohydrate), total phenolic compound, and -oryzanol. The fermentation process significantly increased (P<0.05) the antioxidant activities of all rice b rans and those fermented for 72 hours showed the highest antioxidant activities. This fermentation condition resulted in significant increase in moisture, ash and protein contents, while decreasing the fat and carb ohydrate contents. The total phenolic compound and -oryzanol of the three fermented rice b rans increased significantly (P<0.05). The fermented rice b ran of Inpari 24 variety showed the highest antioxidant activity, total phenolic compound, and -oryzanol contents as compared to those of Inpari 30 and Koshihikari varieties.

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Section: Kadar Total Senyawa Fenolikunclassified

SENYAWA FENOLIK, ORYZANOL, DAN AKTIVITAS ANTIOKSIDAN BEKATUL YANG DIFERMENTASI DENGAN Rhizopus oryzae

Faizah

Kusnandar

Nurjanah

2020

jtip

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Biodelignification of lignocellulose using ligninolytic enzymes from white-rot fungi

Suryadi

Judono

Putri

et al. 2022

Heliyon

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Lignocellulose is the most abundant biomass available on earth, including wood and agricultural wastes such as rice straw, corn cobs, and oil palm empty bunches. The biopolymer content in lignocellulose has a great potential as feedstock for producing industrial raw materials such as glucose, sorbitol, xylose, xylitol, and other pharmaceutical excipients. Currently, scientists and governments agree that the enzymatic delignification method is an environmentally friendly green method to be applied. This review attempts to explain the proper preparation of the enzymes laccase, lignin peroxidase, and manganese peroxidase, as well as the important factors influencing their activity. The recent applications of the enzymes for detoxification of hazardous substances, proper enzyme immobilization technique, and future prospect combination with DESs extraction of lignin are also discussed.

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Pengaruh Aplikasi Bioarang dan Zeolit pada Fluks CO2, Populasi Mikrob, dan Aktivitas Enzim Mikrob pada Gambut

Aprianti¹,

Widyastuti²,

Pulunggono³

et al. 2023

J. Ilmu. Pertan. Indones.

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Oil palm plantation on peatlands is considered to contribute to increasing global warming by releasing CO2 as one of the greenhouse gases that cause global warming. The addition of ameliorants, such as biochar and zeolite, can absorb CO2 from soil respiration and store and filter it in their molecular pores. This research aimed to study the effect of ameliorant application on the CO2 flux, water content, microbial population, and enzyme activities. Ameliorant was applied to peat soil with two factors. The first factor was an ameliorant combination with 6 treatment levels: control (A0); zeolite (A1); biochar (A2); zeolite:biochar 75:25; zeolite:biochar 25:75; zeolite:biochar 50:50, and the second factor was 3 levels dose of treatment (% w/w): 1.5%, 3%, and 4.5%. Peat flux CO2 and water content were measured monthly for four months in the laboratory. Without mixing with biochar (A1), the results showed that zeolite suppressed CO2 flux and suppressed the decrease of water content better than other ameliorant combinations. However, different ameliorant dosage percentages did not show any significant results. Ameliorant application and incubation affected the microbial population and enzyme activities, and the results were varied. Chemical characteristics changed after 4 months of incubation. In conclusion, our results indicate that only zeolite amendment can suppress CO2 flux and decrease water content but did not affect microbial population dynamics and enzyme activities. Keywords: ameliorant, CO2 flux, enzyme activities, lignocellulolytic microbes, peat

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Enzim Laccase dari Edible Mushroom untuk Pemutihan Pati Sagu Ramah Lingkungan

Abstract: ABSTRACT

Cited by 5 publications

References 11 publications

SENYAWA FENOLIK, ORYZANOL, DAN AKTIVITAS ANTIOKSIDAN BEKATUL YANG DIFERMENTASI DENGAN Rhizopus oryzae

SENYAWA FENOLIK, ORYZANOL, DAN AKTIVITAS ANTIOKSIDAN BEKATUL YANG DIFERMENTASI DENGAN Rhizopus oryzae

Biodelignification of lignocellulose using ligninolytic enzymes from white-rot fungi

Pengaruh Aplikasi Bioarang dan Zeolit pada Fluks CO2, Populasi Mikrob, dan Aktivitas Enzim Mikrob pada Gambut

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