Nur Wijayanti
Program Studi Teknologi Pangan Jurusan Teknologi Pertanian Fakultas Pertanian Universitas Jenderal Soedirman, Purwokerto Indonesia

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

Utilization of Nanocellulose Fiber from Tapioca Industrial Solid Waste as a Bioplastic Filling Material Rumpoko Wicaksono; Nur Wijayanti
Indonesian Journal of Food Technology Vol 1 No 1 (2022): Indonesian Journal of Food Technology
Publisher : Program Studi Teknologi Pangan Fakultas Pertanian UNSOED

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (446.773 KB) | DOI: 10.20884/1.ijft.2022.1.1.6158

Abstract

This study aims to examine the properties of nanocellulose fibers produced from cassava through the acid hydrolysis process, as well as their potential use as a filler for bioplastics based on cassava starch (tapioca). The treatment of this research was acid hydrolysis process time consisting of 15 and 30 minutes and the use of nanocellulose fiber as a filler for bioplastics as much as 0%, 1%, 2%, and 3% w/w starch. The results of this study indicate that the diameter of the nanocellulose fibers produced is about 18-40 nm, good dispersion stability, the crystallinity index of the nanocellulose fibers produced by acid hydrolysis for 15 and 30 minutes are 39.7% and 31.2%, respectively. The addition of nanocellulose fibers can increase the tensile strength, but decrease its elongation ability.
Process of Quality Control of Bottled Water at PT. Tirta Purbalingga Adijaya, Bogor Elsa Yuliani; Nur Wijayanti
Indonesian Journal of Food Technology Vol 2 No 1 (2023): Indonesian Journal of Food Technology
Publisher : Program Studi Teknologi Pangan Fakultas Pertanian UNSOED

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.ijft.2023.2.1.9102

Abstract

Quality control is important in the drinking water production process. Drinking water sourced from nature, of course, contains a variety of minerals, ions, and even microorganisms, so it needs to be processed first so that it meets the needs of the human body and is safe for consumption. PT. Tirta Purbalingga Adijaya, Bogor in producing bottled drinking water refers to SNI 3553: 2015 concerning requirements for drinking water quality, as well as in processing it refers to the Regulation of the Minister of Health No.32 of 2017 concerning Standards for Quality Standards for Environmental Health and Water Health Requirements for Sanitation Hygiene Purposes , Swimming Pools, Solus Per Aqua, And Public Baths. PT. Tirta Purbalingga Adijaya, Bogor implements the Hazard Analysis Critical Control Point (HACCP) system where both raw water, processing and finished products are quality controlled every hour by water treatment operators and the results are verified by Quality Control analysts. Important things that become critical control points are filtering with carbon filters and ozone injection. If these two things are not controlled, it will affect the quality content of the drinking water produced and cause hazards such as residual chlorine and microbial contamination so that the product does not meet standards and cannot be marketed. The tests carried out were physical tests such as organoleptic tests, chemical tests such as chlorine content, ozone, metals and others as well as microbiological tests such as total microbes, fungi, coliform and pseudomonas aeruginosa. Based on the analysis that was carried out for 1 week on January 9-14 2023, it was concluded that the Prim-A brand bottled drinking water produced by PT. Tirta Purbalingga Adijaya, Bogor has met the standards set in Indonesia and is safe for human consumption.