Article Per Year (5 Year)
p-Index From 2020 - 2025
0.408
P-Index
This Author published in this journals
All Journal Bioscientist : Jurnal Ilmiah Biologi Biosaintifika: Journal of Biology & Biology Education
Rasyid, Rido Baharudin Ar
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences

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

Found 2 Documents
Search

 1 
Exploration of Indole Acetic Acid (IAA) Producing Fungi from Non-organic Carrot Rhizosphere as Biostimulant Ramadhan, Akhmad Andika; Purwantisari, Susiana; Rasyid, Rido Baharudin Ar
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 2 (2025): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i2.15620

Abstract

This study aimed to isolate and characterize fungi from the rhizosphere of carrots grown in non-organic systems that potentially produce indole-3-acetic acid (IAA), and to evaluate their biostimulatory potential in supporting environmentally friendly agriculture. The methods employed included rhizospheric sample collection from non-organic carrot fields, fungal isolation and purification using PDA media, morphological identification, as well as qualitative screening and spectrophotometric quantification of IAA production using Salkowski reagent. The results revealed six fungal isolates capable of producing IAA, namely Rhizopus stolonifer, Rhizopus oryzae, Trichoderma longibrachiatum, Trichothecium roseum, Pythium aphanidermatum, and Pythium inflatum, with varying levels of IAA production. Among these, R. oryzae produced the highest IAA concentration at 46.8 ppm, followed by P. aphanidermatum (41.8 ppm), T. longibrachiatum (27.3 ppm), P. inflatum (24.5 ppm), R. stolonifer (18.4 ppm), and T. roseum (17.9 ppm). These findings suggest that rhizospheric fungi from the non-organic carrot rhizosphere hold promising potential as IAA-producing bioagents to support sustainable and environmentally friendly agricultural practices.
Characterization and Evaluation of Tobacco Stem Waste Liquid Smoke as an Eco-Friendly Tofu Bio-preservation Purwantisari, Susiana; Rasyid, Rido Baharudin Ar; Wardana, Tegar Pratama Kayong; Arfieta, Frisca; Wibisono, Shafa’ Khairunnisa; Jaya, Myra Ivana Yulia; Dafip, Muchamad
Biosaintifika: Journal of Biology & Biology Education Vol. 17 No. 3 (2025): November 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v17i3.21552

Abstract

Tofu preservation often uses unsafe chemicals, especially formaldehyde, that trigger health problems in humans. Therefore, it is necessary to develop preservation methods that are both effective and safe for human health. Liquid smoke derived from tobacco stem waste is well known to contain antioxidant and antimicrobial properties that may be suitable for use as a preservative compound for tofu. This study aims to evaluated the potential of tobacco stem liquid smoke as a natural preservative by analyzing its chemical profile, antimicrobial efficacy, and impact on tofu characteristics. Tofu samples were soaked in 0%, 5%, and 15% liquid smoke solutions and stored at room temperature for 24 hours. GC-MS analysis confirmed the presence of key compounds: phenolics (51.21%), fatty acids (30.82%), and ketones (17.96%). The treatment significantly improved preservation metrics, reducing the microbial load by up to 81% and lowering the pH to 5.1. The moisture content was reduced while protein levels were proportionally maintained. The 15% concentration provided the highest antimicrobial effect, enhanced aroma, and imparted a distinctive smoky flavor, yet the treatment was preferred by panelists for its better preservation of original color and soft texture. These findings highlight the potential of tobacco stem liquid smoke as a natural, low-cost preservative for tofu, promoting the valorization of biomass waste into value-added products.
Co-Authors Arfieta, Frisca Dafip, Muchamad Jaya, Myra Ivana Yulia Ramadhan, Akhmad Andika Susiana Purwantisari Wardana, Tegar Pratama Kayong Wibisono, Shafa’ Khairunnisa