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All Journal Molluca Journal of Chemistry Education (MJoCE)
Nazudin Nazudin
Departement of Chemistry-FKIP, Pattimura University Ambon
Chemistry Education

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ANALISIS KADAR KARBOHIDRAT, VITAMIN C, β-KAROTEN DAN BESI (Fe) PADA BUAH KERSEN (Muntingia calabura L) SECARA SPEKTROFOTOMETRI UV-VIS Aldrik M Makahity; Yeanchon H Dulanlebit; Nazudin Nazudin
Molluca Journal of Chemistry Education (MJoCE) Vol 9 No 1 (2019): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol9iss1pp1-8

Abstract

Kersen fruit (Muntingia calabura L) is a fruit is existence found in everywhere, but generally nothing interest for consumtion almost people. In a kersen fruit contained many nutriet, aim from the study that is determine carbohydrate, vitamin C, β-caroten, and Fe levels in kersen fruit in the gain at Air Louw Village, Nusaniwe Sub-district, Ambon City. In this study analize sample using spectrophotometry UV-Vis with wavelength carbohydrate 486 nm, vitamin C 273 nm, β-caroten 473 nm and Fe 474 nm and using technique calibration curve. Analyze result is showed that carbohydrate level by 343,393 mg/100 g, vitamin C level by 178,96 mg/100 g, β-caroten level by 1,4831 mg/100 g, and Fe levels by 0,1025 mg/100 g. Based result study can conclusion if kersen fruit can be consumption as food material because having nutrient contet enough for human’s body
ANALISIS KOMPONEN ASAM LEMAK DAN MINERAL (Ca, Mg, Fe, Zn) IKAN KAKAP PUTIH (Lates calcalifer) Nazudin Nazudin; Hernina Wattimena
Molluca Journal of Chemistry Education (MJoCE) Vol 9 No 2 (2019): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol9iss2pp109-115

Abstract

ABSTRACT The analysis of fatty acid component and mineral composition (Ca, Mg, Fe, Zn) of white snapper fish (Lates calclifer) had been done. Flesh of white snapper fish (Lates calclifer) was extracted with petroleum benzene and obtained 6.06% of oil. Oil fish was transesterified by using BF3 – methanol 20%. The result of transesterification was analysed by using and GC-MC obtained nine fatty acid component, those were myristic acid methyl ester 5.94%; pentadecanoic acid methyl ester 1,58%; palmitoleic acid methyl ester 8.73; palmi acid methyl ester 17.69; Margarate acid methyl ester 1.96%; linoleic acid methyl ester 1.56%; oleic acid methyl ester 15.83%; streaic acid methyl ester 10.41%; aracidonic acid methyl ester 5.26%. the result of minerals composition analysis used atom absorption spectrophotometer (ASS) showed that the content of calcium (Ca), Magnesium (Mg), ferrum (Fe), zinc (Zn), were 51,1 mg/kg; 574 mg/kg; 65 mg/kg; and 10,8 mg/kg, respectively. Oil of white snapper fish (Lates calcalifer) contains esensial fatty acid that is benefit to humans body. In the another hand, it also contains mineral content which is enough that it is goof to be consumend by the people.
ANALISIS KANDUNGAN MERKURI (Hg) PADA LIMBAH HASIL PENGOLAHAN EMAS DI GUNUNG NONA DESA WAPSALIT PULAU BURU L S Sello; Abraham Mariwy; Nazudin Nazudin
Molluca Journal of Chemistry Education (MJoCE) Vol 10 No 2 (2020): Molluca Journal of Chemistry Education (MJoCE)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/MJoCEvol10iss2pp130-134

Abstract

The research had been done to analyze the mercury (Hg) content on tailing the result of gold processing at Nona Mountain Wapsalit Village Buru Island. The dry sample was prepared by putting it into the oven at 400C temperatures in two days and then the wet destruction done to the sample. The Tailing was analyzed by using SSA – Cold Steam to get to know about the mercury (Hg) content. The result showed that the average mercury (Hg) content at the location I was 721,43 ppm and at the location II was 344,88 ppm. Thus, the results showed that tailing concentration at the location I had average mercury (Hg) content higher than at the location II
Co-Authors Abraham Mariwy Aldrik M Makahity Hernina Wattimena L S Sello Yeanchon H Dulanlebit