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Journal : Lantanida Journal

VARIASI SUMBER KARBON TERHADAP PRODUKSI BIOSURFAKTAN OLEH BAKTERI HALOFILIK ISOLAT TAMBAK GARAM KAJHU ACEH BESAR Rahmad Rizki Fazli; Latifah Hanum; Mieke Alvionita; Said Ali Akbar
Lantanida Journal Vol 10, No 1 (2022)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v10i1.14108

Abstract

This research has isolated one type of halophilic bacterial strain from the salt pond of Kajhu Village with the code KJ-AB2. This bacterium grew optimally at 10% (w/v) NaCl so it was classified as moderate halophilic bacteria. Several types of halophilic bacteria are known to produce biosurfactants. Biosurfactants are surface active agents that are widely used in several pharmaceutical, food dan petroleum industries. The production of biosurfactants is strongly influenced by the type of carbon source used for bacterial growth. Olive oil, palm oil, sunflower oil, glucose dan glycerol are types of carbon sources used to see their effect in producing biosurfactants. This isolate growed well on the five carbon sources with an average OD600 2.001±0.293 at 72 hours of fermentation. Biosurfactant production was measured by oil spreading test (OST) every 24 hours until 120 hours of fermentation. The highest OST value was obtained when KJ-AB2 isolate was grown on biosurfactant production media using olive oil, sunflower oil dan palm oil with an average OST value of 5.6±0.6 cm, 4.7±0.6 cm, dan 4.6±0.7 cm, respectively.
EKSTRAK GLUKOMANAN UMBI SUWEG (Amorphophallus campanulatus) ASAL PIDIE JAYA SEBAGAI BAHAN SEDIAAN MASKER ORGANIK YANG DIPERKAYA SERBUK DAUN KELOR Fazli, Rahmad Rizki; Hendriani, Rosa; Erlidawati, Erlidawati; Alvionita, Mieke
Lantanida Journal Vol 13 No 1 (2025): January-June 2025
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v13i1.28994

Abstract

The combination of D-mannose and D-glucose with β-1,4-glycosidic bonds with a ratio of 1.6:1 forms a straight chain polymer of glucomannan. Glucomannan flour is widely used in industry to make paper, adhesives, food ingredients, cosmetics, and cleaners. An organic mask preparation from glucomannan flour enriched with moringa leaf powder has been made from suweg tubers from Pidie Jaya, which is expected to be widely used, one of which is as a cosmetic ingredient. The purpose of this study was to determine the glucomannan content in suweg tubers from Pidie Jaya and to obtain the best formula of an organic mask based on panelist preferences. Glucomannan flour was extracted with 60% ethanol solvent and the glucomannan content test was carried out using the DNS method. The formulation of organic mask preparations includes glucomannan flour, moringa leaf powder, and H2O with different concentration ratios, namely F1 (50% glucomannan flour: 50% moringa leaf powder), F2 (75% glucomannan flour: 25% moringa leaf powder) and F3 (25% glucomannan flour: 75% moringa leaf powder). Then the physical properties were tested including pH test, homogeneity test, spreadability test, drying time test, and organoleptic test. The results of the study obtained a glucomannan content of 26.39%. The results of organoleptic testing showed that users preferred organic mask preparations from glucomannan flour enriched with moringa leaf powder formula F1 (50% glucomannan flour and 50% moringa leaf powder) both in terms of color, texture, odor/aroma, and general preference.