Yudhi Nugraha
National Research and Innovation Agency Republic of Indonesia, Jakarta, Indonesia

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

Found 2 Documents
Search

Nicotiana tabacum var. Virginia Bio Oil-based Pyrolysis Extraction Have Prominence Antimicrobial Potential Compared to Ethanol Heat Reflux Extraction (EHRE) Andri Pramesyanti Pramono; Basra Ahmad Amru; Halimah Anggi Rahmani; Sheila Azelya Fernanda; Yudhi Nugraha; Muhammad Yusuf Arya Ramadhan; Andre Fahriz Perdana Harahap; Ahmad Fauzantoro; Nasihin Saud Irsyad; Meiskha Bahar; Oktania Sandra Puspita; Fajriati Zulfa; Kori Yati; Mahdi Jufri; Misri Gozan
HAYATI Journal of Biosciences Vol. 29 No. 4 (2022): July 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.4.515-525

Abstract

Tobacco leaf contains antibacterial secondary metabolite compounds, such as phenol, alkaloids, and essential oils. This study compares the potential antibacterial effects of Indonesian tobacco leaf extracted using the heat reflux method (producing an extract) and pyrolysis method (providing a bio-oil). The tobacco leaf extract was challenged against Staphylococcus aureus ATCC 25923, Enterococcus faecalis ATCC 29212, Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853. The bio-oil from the pyrolysis method showed inhibitory Kirby Bauer zones higher than those of the extract from heat reflux method, with the maximum results in the pyrolysis method indicating zones of 6.35 mm (S. aureus), 5.90 mm (E. faecalis), 3.97 mm (E. coli), and 5.025 mm (P. aeruginosa). Further study analyzed the effectiveness of the disc and well diffusion antibacterial test methods for measuring the antibacterial effect of bio-oils against Escherichia coli ATCC 25922 and Pseudomonas aeruginosa ATCC 27853. The bio-oil used in the well diffusion test method showed the most significant antibacterial effectiveness. It showed the biggest inhibition zone, with a maximum of 11.65 mm and 8.90 mm for E. coli and P. aeruginosa. Our results showed Nicotiana tabacum var. Virginia Bio Oil from Ponorogo (Indonesia) is a strong potential antimicrobial, especially using well diffusion test.
Productive Economic Improvement in the time of COVID-19 Pandemic for the People of Kampung KB Gandul with Innovation of "Mi Jaren" (Palm Sugar Ginger Lemongrass Drink) Andri Pramesyanti Pramono; Yudhi Nugraha; Retno Yulianti
Journal of Innovation and Community Engagement Vol. 3 No. 2 (2022)
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/ice.v3i2.4150

Abstract

Coronavirus disease originating from Wuhan, China, has spread throughout the world, including in Indonesia. Covid-19 patients were first detected in Depok, Cinere, West Java, and increased on June 20, 2020. There have been 45,029 positive cases of Covid-19 on June 2021. Gandul Cinere village is located bordered by South Jakarta. Jakarta has a relatively high number of Covid-19 positive patients. Many people lost their jobs during the pandemic, including in the Jakarta and surrounding areas. Anis Baswedan, the governor, expects the unemployment rate due to the Covid-19 Pandemic in the DKI Jakarta area will reach 10 percent in 2021. This shows that economic problems cannot be ruled out easily. Therefore, efforts are needed to improve the economy of UMKM (Usaha Mikro Kecil dan Menengah) to further strengthen Indonesia's economy, especially in the DKI Jakarta and surrounding areas. Red Ginger (Zingiber officinale var Rubrum) and lemongrass (Cymbopogon citratus) are easy to find in Indonesia. Palm Sugar Ginger Lemongrass (MI JAREN) instant drink is an excellent herbal product to be studied and marketed in the Gandul village community. This instant herbal drink-making training was provided online, along with how to package it. The activity results showed that society in Kampung KB Gandul has good knowledge, only still requires guidance for the marketing, especially online. It is hoped that this community service activity can improve the economy in Kampung KB Gandul while also keeping the people of Kampung KB Gandul to avoid COVID-19 infection.