Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Formosa Journal of Science and Technology (FJST)

Analysis of Lead (Pb) Metal Content in Catfish Meat (Clarias batrachus L) Sold at Bekonang Market, Sukoharjo Jamilatun, Makhabbah; Agustin, Wiwit Widitya; Tolkhah, Ronald
Formosa Journal of Science and Technology Vol. 3 No. 2 (2024): February 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v3i2.8110

Abstract

Catfish (Clarias bathracus L) can survive and be able to tolerate polluted water conditions. Lead metal naturally occurs in water and contaminates the organisms in it. Lead metal contamination in fish will cause poisoning and brain damage if it enters the human body's metabolism and accumulates in amounts that exceed the threshold. This research was conducted to determine the content of Pb metal in catfish meat sold at Bekonang Market, Sukoharjo. The method used in this research is a qualitative analysis using the K2CrO4 reagent and a quantitative analysis using Atomic Absorption Spectrophotometry. The results of the research with K2CrO4 reagent showed that samples A, B, C, D, and E were negative respectively. The average levels of lead (Pb) in catfish meat samples A, B, C, D, and E were -21.98 mg/Kg ± 0.140; -22.10 mg/Kg ± 0.035; -24.32 mg/Kg ± 0.107; -10.99 mg/Kg ± 0.191; and -24.36 mg/Kg ± 0.091. Based on the results of the study, it can be concluded that the content is still below the threshold according to the requirements for lead (Pb) levels allowed by Republic of Indonesia Food and Drug Supervisory Agency Regulation Number 5 of 2018 concerning the Maximum Limit of Heavy Metal Contamination of 20 mg/kg.
Formulation and Evaluation of Face Mask Gel Peel Off Combination of Avocado Leaf Extract (Perssea Americana Mill) and Jicama (Pachyrrhuzul Erosus L.) Jamilatun, Makhabbah; Pratiwi, Melinda Dwi; Yulianto, Susilo
Formosa Journal of Science and Technology Vol. 3 No. 8 (2024): August 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v3i8.10580

Abstract

Avocado leaves and jicama contain antioxidants. Topical use of antioxidants can reduce UVA radiation which can cause skin darkening. Utilization of avocado leaves and jicama is done by making a peel-off gel facial mask. This research was conducted to formulate and determine the physical quality of a gel peel-off facial mask combination of avocado and jicama leaf extracts. The quantitative experimental method was used and four formulas for varying the concentration of the active substance were prepared, with a comparison of the total extracts used, avocado and jicama leaf extracts. The combination of avocado leaf extract and jicama  can be formulated as a gel peel off facial mask, with the results of physical evaluation have met the requirements.