Article Per Year (5 Year)
p-Index From 2021 - 2026
0.947
P-Index
This Author published in this journals
All Journal Jurnal Ilmu dan Teknologi Hasil Hutan Jurnal Industri Hasil Perkebunan Jurnal Ilmu dan Teknologi Kayu Tropis Jurnal Sylva Scienteae Global Forest Journal Jurnal Sains Materi Indonesia Jurnal Penelitian Hasil Hutan
Widya FATRIASARI
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 13 Documents
Search

 1   2 
EFFECTS OF CHITOSAN COATING ON THE PHYSICAL, MECHANICAL AND ANTIMICROBIAL PROPERTIES OF FOOD PACKAGING PAPER Kurnia Wiji Prasetiyo; Deni Zulfiana; Sita Heris Anita; Widya Fatriasari; Lisman Suryanegara; Nanang Masruchin; Sesmi Gutari
Jurnal Sains Materi Indonesia Vol. 21 No. 2 (2020): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

EFFECTS OF CHITOSAN COATING ON THE PHYSICAL, MECHANICAL AND ANTIMICROBIAL PROPERTIES OF FOOD PACKAGING PAPER. The coating process on food packaging paper is carried out to improve the food safety and health aspect from dangerous substance migration from food packaging into food. Chitosan has attracted interest in packaging, especially in food packaging as edible films and coatings. A paper from oil palm empty fruit bunches (OPEFB) pulp was coated with chitosan using different pulp weight (1, 1.5, 2 g) and chitosan content (0.25, 0.50, 0.75, 1 g) as parameters. The effect of chitosan as coating material on physical, mechanical, and antimicrobial properties was studied. The results showed that the density and grammage values of the paper increased after coating due to the increasing of chitosan content. The mechanical properties of the coated paper, such as tensile strength, tensile modulus and elongation, improved in line with the increase of chitosan content and pulp weight. The addition of chitosan on paper imparts antimicrobial properties against Gram-positive bacteria (Staphylococcus aureus) and Gram- negative bacteria (Escherichia coli).
Cellulose first fractionation strategy in lignin valorization: A mini review Widya Fatriasari
Global Forest Journal Vol. 2 No. 01 (2024): Global Forest Journal
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/gfj.v2i01.15563

Abstract

Lignin, a naturally abundant aromatic polymer of natural origin, offers numerous desired intrinsic properties belonging to rich functional groups. However, the lignin properties vary influenced by the source of biomass (hardwood, softwood, and herbaceous) with different monomer unit proportions, delignification methods, and isolation techniques. To extract lignin, two routes have been introduced i.e. cellulose first fractionation and lignin first fractionation. The focus of this review is revisiting the strategy of cellulose first fractionation in which lignin is mainly present as a side product of the delignification process via the sulfur-bearing process and the non-sulfur-bearing process. After that process, the isolation process was employed in black liquor as a by-product of the process. By this route, technical lignin is produced with the potential to convert into biomaterial feedstocks. The main property concern of this lignin is its condensed structure which requires further modification for specific purposes. Physical and chemical modification can be introduced to increase the reactivity of lignin to widen the application
PEMANFAATAN LIGNIN HASIL ISOLASI DARI LINDI HITAM PROSES BIOPULPING BAMBU BETUNG (Dendrocalamus asper) SEBAGAI MEDIA SELEKTIF JAMUR PELAPUK PUTIH Sita Heris Anita; Dede Heri Yuli Yanto; Widya Fatriasari
Jurnal Penelitian Hasil Hutan Vol. 29 No. 4 (2011): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2011.29.4.312-321

Abstract

The utilization of black liquor produced in pulp and paper production has been limited for adbesive. In microbiology, black liquor can be used as a selective mediunt. The purpose of this study was to evaluate the performacne of lignin isolated from black liquor of biopulping process as a selective medium for white-rot fungi. Lignin, from black Liquor of soda and kraft pulping of bamboo petung was isolated by acid addition. Lignin solid was then purified using diccan solution, weighted and qualitatively analyzed using a spectrophotometer. The isolated lignin was added to agar media to test the white-rot fungi selectivity (Phanerochazte crysosporium and Trametes versicolor). The results showed that pretreatment of bamboo for 30 days give more lignin than the 45-days treated bambon. Lignin solid from kraft process was also bigher than lignin from soda process. Enzyme secretion from fungi T. versicolor occurs more rapidly than P. chrysasporium on selective media alkali-lignin.
Co-Authors Ahmad Arsyad Ahmad Zailani Andi D Yunianti Apri H Iswanto Danang Sudarwoko Adi Deddy TN Adi Dede Heri Yuli YANTO Dede HY Yanto Deded Sarip Nawaw Deni Zulfiana Eko Budi Santoso Euis Hermiati Fahriya Puspita Sari Faizatul FALAH Fauzi Febrianto Jayadi Jayadi Kurnia Wiji Prasetiyo Lee Seng Hua Lisman Suryanegara Lum Wei Chen Maya Ismayati Muhammad Adly Rahandi Lubis Nanang Masruchin Nissa Nurfajrin Solihat Nissa Nurfajrin Solihat Raden BP Laksana Ratih Damayanti Riksfardini A Ermawar Riksfardini Annisa ERMAWAR Sesmi Gutari Sita H Anita Sita Heris Anita sunardi sunardi Surdiding Ruhendi Teguh DARMAWAN Try Purwanti Wasrin Syafii Wiwin Tyas Istikowati