Zobrazeno 1 - 10
of 166
pro vyhledávání: '"Sutopo, Hadi"'
Autor:
Wasinton Simanjuntak, Kamisah Delilawati Pandiangan, Tika Dwi Febriyanti, Aryani Putri Islami, Sutopo Hadi, Ilim Ilim
Publikováno v:
AIMS Energy, Vol 12, Iss 3, Pp 600-616 (2024)
This research was conducted to study upgrading bio-crude oil (BCO) produced by pyrolysis of palm oil without the use of a catalyst, using protonated zeolite-Y designated as H-Y. Preparation of H-Y was carried out by subjecting zeolite-Y synthesized f
Externí odkaz:
https://doaj.org/article/4f08a04284104894b12cdd6bafd42c78
Autor:
Tati Suhartati, Antin S. Prihatin, Armidla N. Kurniati, Hendri Ropingi, Yandri Yandri, Sutopo Hadi
Publikováno v:
Emerging Science Journal, Vol 8, Iss 1, Pp 43-60 (2024)
In this present work, a cycloartobiloxanthone compound was isolated from the stem wood and root bark of the Pudau plant (Artocarpus kemando Miq.). The purity of the compound was determined using thin-layer chromatography with three eluent systems and
Externí odkaz:
https://doaj.org/article/971fa388ebb042ee93e1044cce447a31
Publikováno v:
Emerging Science Journal, Vol 7, Iss 5, Pp 1811-1826 (2023)
Stability enhancement attempted in this study demonstrated that significant improvement in the stability of the α-amylase isolated from Aspergillus fumigatus was achieved by immobilizing the enzyme on a bentonite/chitosan hybrid matrix using the ads
Externí odkaz:
https://doaj.org/article/ae047233cf9d4db9b60fe78529859358
Anticancer Activity Study of Modified Artocarpin Compound from Pudau Plant (Artocarpus kemando Miq.)
Publikováno v:
Emerging Science Journal, Vol 7, Iss 3, Pp 733-743 (2023)
This research is a continuation of the successful isolation of artocarpin from the root of Artocarpus kemando Miq reported in our previous study. In the previous study, the artocarpin was characterized with UV-Vis and FTIR techniques. In this follow-
Externí odkaz:
https://doaj.org/article/41974fcc24ec4736912306289d5964b1
Publikováno v:
Jurnal Sumberdaya Alam dan Lingkungan, Vol 10, Iss 1, Pp 22-29 (2023)
ABSTRAK Aluminium adalah jenis kofaktor logam terbaik. Pemaparan medan magnet 0,2mT pada garam aluminium mampu meningkatkan aktivitas enzim selulase pada bakteri Bacillus sp. Penelitian ini bertujuan untuk mencari jenis garam aluminium terbaik un
Externí odkaz:
https://doaj.org/article/bf6e82f1fa7f4a02bb39218bc6a65831
Publikováno v:
Drvna Industrija, Vol 74, Iss 1, Pp 53-60 (2023)
Waste is generated in the form of black liquor during pulp processing. Furthermore, lignin, the main ingredient of black liquor, contains a phenylpropanoid compound with prebiotic and antimicrobial activity. Also, it is a component of lignocellulose
Externí odkaz:
https://doaj.org/article/8a36065f633f4308a40f74a645d44979
Autor:
Bambang Irawan, Aandi Saputra, Salman Farisi, Yulianty Yulianty, Sri Wahyuningsih, Noviany Noviany, Yandri Yandri, Sutopo Hadi
Publikováno v:
AIMS Microbiology, Vol 9, Iss 1, Pp 41-54 (2023)
Pineapple litter has a complex polymer of cellulose, hemicellulose, and lignin, which makes them difficult to decompose. However, pineapple litter has great potential to be a good organic material source for the soil when completely decomposed. The a
Externí odkaz:
https://doaj.org/article/43714d7d9d054d68981850fade9e53cb
Publikováno v:
Emerging Science Journal, Vol 7, Iss 1, Pp 77-89 (2022)
In this research, immobilization of A. fumigatus α-amylase on chitin was studied with the main purpose to improve the characteristics of the enzyme. A series of experiments were carried out to study stability improvement, thermodynamic parameters, i
Externí odkaz:
https://doaj.org/article/9ec8fe1f9d104e80896615b067626576
Publikováno v:
Emerging Science Journal, Vol 6, Iss 3, Pp 505-518 (2022)
In this paper, the A. fumigatus α-amylase had been immobilized onto zeolite/chitosan hybrid to improve its thermal-stabilization for industrial needs. The methods applied enzyme production, isolation, partial purification, immobilization, and charac
Externí odkaz:
https://doaj.org/article/0dda18c82282472fac54a1ab3d4b7bbe
Autor:
Tugiyono Tugiyono, Agus Setiawan, Suharso Suharso, Anang Risgiyanto, Muhammad Nuril Huda, Sutopo Hadi
Publikováno v:
International Journal of Ecology, Vol 2023 (2023)
This research aims to evaluate the water quality status and pollution load-carrying capacity of the Way Umpu River based on land use. This was carried out using the survey method by directly measuring the river water debit, pH, temperature, and disso
Externí odkaz:
https://doaj.org/article/9b6c85c21017450cbbfba380d82db03a