cover
Contact Name
Muhammad Nur Alam
Contact Email
kimiafsains@uncp.ac.id
Phone
+6285294880569
Journal Mail Official
cjcs@uncp.ac.id
Editorial Address
Program Studi Kimia, Fakultas Sains Universitas Cokroaminoto Palopo Kampus 2, Jl. Lamaranginang Kota Palopo Sulawesi Selatan
Location
Kota palopo,
Sulawesi selatan
INDONESIA
Cokroaminoto Journal of Chemical Science
ISSN : -     EISSN : 2723438X     DOI : -
The journal publishes two continuous issues annually, which means every accepted article in February - July will be published in Issue No. 1, and every accepted articles in August - Januar will be published in Issue No. 2. scope is organic chemistry, inorganic chemistry, analytical chemistry, physical chemistry, theoretical chemistry and applied chemistry
Articles 35 Documents
PEMBUATAN SABUN MANDI PADAT DARI MINYAK JELANTAH DAN BIJI KAKAO (Theobroma cacao L.) Nurasia; Puspita Sari; Suaedi
Cokroaminoto Journal of Chemical Science Vol. 1 No. 1 (2019): Agustus
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to make solid soap from used cooking oil and cocoa beans (Theobroma cacao L.). This research was conducted in the laboratory of natural materials at the Faculty of Science, University of Cokroaminoto Palopo. The process of making soap through several stages, namely the first stage of purification, neutralization and bleaching of used cooking oil using bleaching Earth and testing of free fatty acid levels (FFA). Purification results obtained with different variations of the stirring contact time showed good results with a decrease in free fatty acid levels in used cooking oil. The results of the analysis of fatty acid levels are calculated based on palmitic acid, lauric acid and oleic acid. The second stage is the manufacture of solid bath soap and continued with testing the quality of the soap. There are two types of soap quality testing, namely the pH test and the free alkali test. The test results showed that the pH of soap with the addition of NaOH solution with a concentration of 20%, 30% and 40% was 12. The pH level of the resulting soap did not meet the standards. The results of testing alkaline free soap bath with a concentration of 20% NaOH obtained by 22.6%, soap with a concentration of 30% NaOH of 28.92% and bath soap with a concentration of 40% NaOH of 1.66%. The results obtained are still not in accordance with the soap quality standards set by SNI.
IDENTIFIKASI GUGUS FUNGSI SENYAWA PLAVANOID DARI EKSTRAK ETANOL DAUN AKAR BULU (Merremia Fitovilia) MENGGUNAKAN SPEKTROSKOPI FT IR Sukarti; Ariandi; Ilmiati Illing; Nurasia
Cokroaminoto Journal of Chemical Science Vol. 1 No. 1 (2019): Agustus
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to identify the functional groups of chemical compounds from ethanol extract of akar bulu leaf (merremia fitovilia) using FT IR spectroscopy. M. fitovilia plant has been known by the people in Luwu as one of the traditional wound healing drugs in people with diabetes mellitus. The phytochemical test is known that the leaves of M. Fitovilia contains with flavanoid, alkaloids, steroids and phenolic compounds. In this study identification of functional groups of chemical compounds from the ethanol extracts of M.fitovilia leaves through sample preparation stages (sample collection, drying and sieving); extraction through ethanol maceration techniques, evaporation and FT IR analysis. The spectroscopic analysis of FT IR indicated that the ethanol extract of bilajang bulu leaves had functional groups of hydroxyl (OH), C-H aliphatic, carbonyl (C = O), olefin carbon (C = C), aromatic carbon, and alkoxy (C-O).
PEMBUATAN BIOPLASTIK BERBAHAN DASAR PATI KULIT PISANG KEPOK/SELULOSA SERBUK KAYU GERGAJI Muhammad Nur Alam; Elisusanti; Ilmiati Illing
Cokroaminoto Journal of Chemical Science Vol. 1 No. 1 (2019): Agustus
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Bioplastic was synthesized from starch as a result of the extract from Kepok banana peel and added with cellulose as the result of isolation of sawdust as a filler. Bioplastic mixture is added with glycerol as a plasticizer. Making bioplastics was done by the sol-gel method at a temperature of 90 oC for 1 hour from forming the sol to a bioplastic gel. Cellulose filler material varied from 0, 2, 4, and 6% w / v. The results of biodegradation testing show that bioplastics with the addition of cellulose have a higher rate of degradation than bioplastics without cellulose. Bioplastics with the highest degradation rates were obtained at cellulose addition of 2% w / v which reached degradation up to 100% for 15 days of burial. The phenomenon of bioplastic degradation is evidenced by the results of FTIR characterization which shows that bioplastic samples with cellulose additions have decreased very sharply at several peak absorption after burial. This also occurs in bioplastics without cellulose, but the decrease in peak absorption intensity is no more significant than bioplastics with cellulose addition.
IDENTIFIKASI SENYAWA STEROID DARI PANGSA KULIT DURIAN (Durio zibethinus) Ilmiati Illing; Yusiranna
Cokroaminoto Journal of Chemical Science Vol. 1 No. 1 (2019): Agustus
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Plants are natural ingredients that are widely used as traditional medicines and have been used for a long time by the people of Indonesia, even more popular both for the purpose of health care, treatment, and beauty, one of which is the use of durian rind as an anti-cholesterol drug based on their knowledge for generations. Although it is not yet equipped with scientifically convincing data regarding the content of active compounds that make it a nutritious drug, scientific research is needed in the form of identifying the steroid compounds contained therein. This research used maceration extraction method. A total of 50 grams of durian skin share powder was soaked with 96% ethanol which was carried out for 3 days with replacement fluid. Furthermore, the identification of secondary metabolite compounds by the Gas Chromatography-Mass Spectroscopy (GC-MS) Agilent 7890A-5975C method. Based on the results of a study conducted a share of positive durian skin containing a group of steroid compounds in the form of beta-sitosterol.
KAREKTERISASI EKSTRAK ETANOL UBI JALAR UNGU (Ipomea batatas L) MENGGUNAKAN SPEKTROSKOPI INFRARED Muhammad Yasser; Muhammad Badai
Cokroaminoto Journal of Chemical Science Vol. 1 No. 1 (2019): Agustus
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Purple Sweet Potato extraction has been done by soaking with ethanol solvent for 24 hours. Ethanol extract was then characterized using Infrared spectroscopy to determine the functional groups contained in the extract. Characterization results using Infrared spectroscopy showed wave number 1053.17 cm-1 as a marker for aromatic groups, wave number 1276.92 cm-1 indicates the presence of primary or secondary OH bonds, wave number 1413.87 indicates the presence of OH bonds as phenols, wave number 1637.62 indicates the C = C bond, wave number 2941.54 shows the CH bond and wave number 3410.26 also indicates the presence of an OH group.
ANALISIS KOMPONEN KIMIA DAN UJI AKTIVITAS ANTIOKSIDAN EKSTRAK RIMPANG JAHE MERAH (Zingiber officinale Rosc. Var rubrum) Rachmin Munadi
Cokroaminoto Journal of Chemical Science Vol. 2 No. 1 (2020): Agustus
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Study on chemical component analysis and antioxidant activity test of red ginger rhizome extract (Zingiber officinale Rosc. Var rubrum) has been conducted. The red ginger rhizome was extracted by maceration method and using methanol as a solvent. The antioxidant activity was tested by using DPPH method with wavelength 515 nm. The result showed that positively, red ginger rhizome extract containing flavonoid, tannins, saponins, alkaloids and terpenoids compounds, whereas, the antioxidant antioxidant anticity test got value IC50 10, 35µg/mL classified as very strong.
PEMANFAATAN KARBON AKTIF DARI LIMBAH SERAT SAGU (Metroxylon sagu) SEBAGAI ADSORBEN DALAM PEMBUATAN SMART FILTER LIMBAH CAIR DOMESTIK Nurasia; Andyani; Suaedi
Cokroaminoto Journal of Chemical Science Vol. 2 No. 1 (2020): Agustus
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to make a Smart Filter for domestic liquid waste by utilizing activated carbon from Sago Fiber Waste as an adsorbent. The stages of this research consisted of making activated carbon, characterizing activated carbon and testing the smart filter. The results of the research show that activated carbon from sago fiber (Metroxylon sago) is needed to produce the best Smart Filter in reducing levels of domestic liquid waste (household liquid waste) by as much as 20 g. This is based on the results of tests carried out in this study where the more activated carbon is used, the more reduction in waste content is produced, resulting in a decrease in the content of Chemycal Oxygen Demand (COD) by 4%. The Smart Filter test results in reducing levels of domestic liquid waste (household liquid waste) in the Gray Water category gave a good effect according to the results obtained for all test parameters carried out, namely turbidity, pH and Chemycal Oxygen Demand (COD). Based on observations made from the use of Smart Filters with two forms, namely powder and granules, better results are obtained, namely the use of Smart Filters that use powdered activated carbon.
UJI DAYA HAMBAT EKSTRAK ETANOL KETEPENG CINA (Cassia alata L.) TERHADAP PERTUMBUHAN JAMUR Colletotrichum gloeosporioides Pauline Destinugrainy Kasi; Ridha Yulyani Wardhi; Sunarti Cambaba; Ika Pitra Annisa
Cokroaminoto Journal of Chemical Science Vol. 2 No. 1 (2020): Agustus
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Colletotrichum gloeosporioides is a pathogenic fungus that attacks plants and causes anthracnose disease. Leaves of ketepeng cina (Cassia alata. L) have potential as a biological fungicide because they contain secondary metabolite which is collected as an antifungal. This study aims to know about the inhibitory effects of etanolic extract of ketepeng cina leaves on the growth of Colletotrichum gloeosporioides, and to determine the effective concentration of etanolic extract of ketepeng cina leaves in inhibiting the growth of Colletotrichum gloeosporioides. The treatment etanolic extract of ketepeng cina leaves used were: P0: 0% concentration, P1: 30% concentration, P2: 60% concentration and P3: 80% concentration. Fungal growth was observed on the 7th day after incubation. The results showed that the contribution of etanolic extract of ketepeng cina leaves could inhibit the growth of the fungus Colletottrichum glosporidies. The most effective concentration of etanolic extract of ketepeng cina leaves was 80%, with an average growth of Colletotrichum gloeosporioides diameter was 1.35 cm and suppressed the spread of hyphae
ANALISIS PROKSIMAT KARBON AKTIF LIMBAH SERAT SAGU TERAKTIVASI KOH Nurmalasari; Afni Mulyasari; Risna; Surianti; Diana
Cokroaminoto Journal of Chemical Science Vol. 2 No. 1 (2020): Agustus
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Research on the proximate carbon analysis of sago fiber waste has been carried out. This study aims to determine the chemical properties of sago fiber activated carbon. Activated carbon was prepared using the hydrothermal cabonization method. Activation is carried out chemically using KOH and followed by calcination at a temperature of 500°C. Proximate analysis was carried out to determine the chemical properties of the carbon produced. In this study, the water, ash, volatile and bonded carbon content were 6.67%, 21.22%, 17.8% and 45.79%, respectively.
KADAR ALBUMIN IKAN BETOK (Anabas testudineus) PADA SUNGAI DESA CENNING KECAMATAN MALANGKE LUWU UTARA Rafika Wulandari; Nurmalasari; Ridha Yulyani Wardi
Cokroaminoto Journal of Chemical Science Vol. 2 No. 1 (2020): Agustus
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Betok fish (Anabas Testudineus) is a fish with high protein but there is no information about the albumin content in betok fish. This study aims to determine the albumin of Betok Fish (Anabas Testudineus) in Cenning, West Malangke District, North Luwu Regency. The measurement of albumin used the Lowry method with samples of adult fish of different sizes. The albumin content increases with increasing length and width of fish.

Page 1 of 4 | Total Record : 35