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INDONESIA
PROSIDING SEMINAR KIMIA
Published by Universitas Mulawarman
ISSN : -     EISSN : -     DOI : -
Core Subject : Science,
Chemistry
Arjuna Subject : -
Articles 42 Documents
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Search results for , issue "SEMINAR NASIONAL KIMIA 2014" : 42 Documents clear
STUDI METODE PENGOLAHAN MINYAK SAWIT MERAH (Red Palm Oil) DARI CRUDE PALM OIL (CPO) Deni Sumarna
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
Publisher : PROSIDING SEMINAR KIMIA

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Abstract

CPO (Crude Palm Oil) merupakan produk dari buah sawit dari bagian mesokarp, dimana dalam proses pengolahan lebih lanjut untuk mendapatkan minyak goreng, akan melewati beberapa proses sehingga didapatkan minyak goreng yang berwarna jernih yang sangat berbeda dengan produk asalnya yaitu CPO. Didalam CPO terdapat komponen aktif yang dikenal dengan sebutan komponen minor, yangperanannya sangat penting bagi kesehatan tubuh meskipun dalam jumlah kecil terutama untuk produk - produk farmasi. Kandungan provitamin A yang tinggi di dalam CPO pada proses pemurnian konvensional untuk mendapatkan minyak goreng (RBDPO) banyak dirusak bahkan sengaja dibuang. Dengan tidak melakukan proses bleaching pada proses pemurnian, akan didapat Minyak sawit merah yang kaya akan beta karoten. Urutan tahapan pada proses pemurnian dapat mempengaruhi kualitas minyak sawit merah yang dihasilkan. Dengan tiga metode yai tu Degumming-Netralisasi-Fraksinasi, Fraksinasi-Degumming-Netralisasi, dan Fraksinasi-Netralisasi diperoleh nilai persentase asam lemak bebas berkisar antara 1.71-2.18 %, kadar air 0.08-0.13 %, peroksida 0.03-0.04 mg O2 /100g, bilangan iod 50.79 – 52.94 g I 2 /100 g.
THE EFFECT OF MACKEREL (Scomberomorus commerson) IN THE FEED TO THE DECLINE IN BLOOD CHOLESTEROL LEVEL HYPERCHOLESTEROLEMIC MALE MICE (Mus musculus) Rudi Kartika; Djihan Ryn Pratiwi; Arifwan -; Wahyu Budi Utama; Wahyu Teguh Santoso
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
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Blood cholesterol levels wh ich were higher than normal is trigger of various diseases. The objective of the research was to know “The Effect of Mackerel (Scomberomorus co mmerson) in the Feed to the Decline in Blood Cholesterol Levels in Hypercholesterolemic Male Mice (Mus musculus). The study was conducted over 40 days using completely randomized design with treatments, the positive control, negative control, and the mice were given the addition of mackerel on a standard feed with 3 different levels so grouped in L1 (2:1); L2 (1:1) and L3 (1:2). The parameters measured are total cholesterol blood serum of mice with the CHOD-PAP method. Cholesterol levels are measured with a photometer 5010 at a wavelength of 500 nm. The result in the (-) 86 mg/d L; (+) 113 mg/d L; L1 102 mg/d L; L2 86 mg/dL; and L3 82 mg/dL.
HIDROLISIS ENZIMATIS LIGNOSELULOSA TANDAN KOSONG KELAPA SAWIT MENJADI GULA PEREDUKSI Maria Bintang; Faizal Gayang; Nur Richana
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
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Abstract

he processing of palm oil into crude palm oil (CPO) produced solid waste such as oil palm empty fruit bunches (OPEFB) with an average of 10 million tons / year which has not been used optimally and can pollute the environment. The main co mponents of OPEFB is cellu lose and lignin called lignocellulose waste. The content of cellulose and hemicellulose in OPEFB potential to be used as a source of reducing sugar by acid hydrolysis or enzyme. Hydrolysis of OPEFB performed using HCl followed by enzy matic hydrolysis using cellulase 0.5% and xy lanase 0.5%. The results showed a reducing sugar level produced with xylanase was 50.5 mg / L and hydrolysis with cellulase was 37.05 mg/L.
ANALISIS RENDEMEN DAN SIFAT FISIKA-KIMIA GELATIN KULIT IKAN TENGGIRI (Acanthocybium solandri) YANG DIPRODUKSI DENGAN METODE ASAM Yuliani -
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
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Abstract

Penelit ian ini bertujuan untuk mengetahui pengaruh berbagai konsentrasi asam klo rida (HCl) dan lama perendaman dalam larutan asam klo rida terhadap rendemen, kadar air, kadar protein, dan kekuatan gel gelatin yang diekstrak dari ku lit ikan tenggiri. Penelitian menggunakan rancangan acak lengkap dua factor, dengan factor pertama adalah konsentrasi HCl masing -masing 4%, 6%, dan 8%, sedangkan factor kedua adalah lama perendaman dalam larutan HCl selama 48 jam, 72 jam, dan 96 jam, masing -masing dengan 3 ulangan. Hasil penelit ian menunjukkan konsentrasi HCl dan lama perendaman dalam larutan HCl berpengaruh terhadap rendemen, kadar air, kadar protein , dan kekuatan gel dari gelatin yang dihasilkan. Hasil terbaik diperoleh dari ko mbinasi perlakuan konsentrasi HCl 4% dan lama perendaman 48 jam, dengan nilai rendemen 5,62%, kadar air 12,35%, kadar protein 80,08%, dan kekuatan gel 29,50 bloom.
FORMULATION OF YELLOW PUMPKIN (Cucurbita Moschata) AND GRATED COCONUT TO CHEMISTRY AND SENSORY PROPERTIES ON COOKIES MAKING Wiwit Murdianto; Hudaida Syahrumsyah; Susi Yanti
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
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The purpose of this research to determine the formu lation of yellow pumpkin and grated coconut and on chemical and sensory properties of the cookies making. The experimental design used in this study was completely rando mized design (CRD) with six non -factorial treat ment and repeated four times. The treaments are formu lations yello w pu mpkin and grated coconut is 0 : 100 (S 1 ), 20 : 80 (S 2 ), 40 : 60 (S 3 ), 60 : 40 (S 4 ), 80 : 20 (S 5 ), 0 : 100 (S 6 ). Data were analy zed using analysis of variance by F test, if there is a real d ifference t en contin ed it test Least ignificant Difference (L D) it α level of 5 % . The results showed that the formu lation of yellow pump kin and grated coconut with a ratio o f 40 g : 60 g (S3) was the best treatment because it had the highest score compared to the other treatments that hedonic aroma with a score of 3.27 (like), with a score of 3.57 co lors (like) , texture with a score of 3.62 (like) and flavor with a score of 3.09 (like), and the chemistry properties were mo isture con tent 3.80 %, protein content 55.84(g/100g), and fat content 11,25 (g/100g)
PROFIL FITOKIMIA DAN BIOAKTIVITAS BEBERAPA TUMBUHAN MALVACEAE SULAWESI SELATAN Nunuk Hariani Soekamto
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
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Abstract

PROFIL FITOKIMIA DAN BIOAKTIVITAS BEBERAPA TUMBUHAN MALVACEAE SULAWESI SELATAN
KAJIAN KUALITAS UDARA KOTA SAMARINDA DITINJAU DARI ASPEK AKTIVITAS KENDARAAN BERMOTOR Bohari Yusuf
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
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Declining air quality and increasing number of vehicles at Samarinda City indicating that there is strong relationship between both. Research was done to understand current air pollution level in Samarida as ISPU Criteria and relationship air pollutant level with number of vehicles activities. Research was done by counting number of vehicles and collecting air samples at five crowded traffic intersection. Air samples tested in laboratory for ISPU specified air pollutant level, which are CO, NO2, SO2, O3 and dust (PM 10). Analysis of correlation was conducted to understand relationship between numbers of vehiclesand air pollutant level. Average level of air pollutant and their ISPU value were CO 2803ug/m3 (28.03; Good), NO2 47.9ug/m3 (-; Good), SO2 53.0ug/m3 (33.12; Good), O3 31.3ug/m3 (13.04; Good) and Dust 36.1ug/m3 (36.1; Good). There was positive correlation between numbers of vehicles and air pollutant level with coefficient >0.9. Therefore, limit numbers of vehicles before limit air pollutant level passed could be predicted. Prediction of limit numbers of vehicles based on CO level were 31217 units, NO2 level were 54186 units, SO2 level were127692 units, O3 level were 48672 units and dust level were 26371 units. Levels of CO, NO2, SO2, O3 and dust (PM 10) at Samarinda City still comply PP No. 41 year 1999 with Good as ISPU criteria average. Increase in number of vehicle will increase air pollutant levels too.Keywords: Air, Level, Pollutant, ISPU, Quality
UJI AKTIVITAS ANTIOKSIDAN DAN TOKSISITAS EKSTRAK N- HEKSAN DAN ETIL ASETAT RANTING SIRIH HUTAN (Piper aduncum L.) Yerwanto Ilang; Syelvia Lousiana Kalauw; Rudi Kartika; Fauzi Rachman
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
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The aim of this study was to determine the antio xidant and toxicity act ivities of n-hexane and ethyl acetate of Piper aduncum L. (family : Piperaceae). Antio xidant activities of the ext racts was assessed by means of DPPH free radical scavenging method used ascorbic acid as standard with IC 50 value was 4,841 μg/mL. Piper aduncum L. showed n-hexane extract demonstrated the good antioxidant activity with IC 50 value of 40,034 μg/ mL and the ethyl acetate extract is 59,838 μg/ mL. The Brine shrimp letality bioassay met od as sed to determine t e cytotoxicity activities. The LC 50 values of n-hexane and ethyl acetate extracts were 25,12 and 17,78 μg/ mL, respectively.
Generic Skills Development in Science and Chemistry Muhamad A. Martoprawiro
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
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Generic Skills Developmentin Science and Chemistry
PEMANFAATAN EKSTRAK DAN UJI STABILITAS ZAT WARNA DARI BUNGA NUSA INDAH MERAH (M usaenda frondosa), BUNGA MAWAR MERAH (Rosa), DAN BUNGA KARAMUNTING (Melastoma malabathricum) SEBAGAI INDIKATOR ASAM-BASA ALAMI Muflihah -
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
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Abstract

Ekstraksi dan Uji Stabilitas Zat Warna Alami dari Bunga Nusa Indah Merah, Bunga Mawar Merah dan bunga Karamunting telah d ilakukan. Ekstraksi dilaku kan dengan metode maserasi. Sampel d iidentifikasi secara kualitatif dengan menggunakan larutan asam kuat HCl 1 M, NaOH 1 M , dan aquades serta alkohol 95%. Hasil penelit ian menunjukkan bahwa Bunga Nusa Indah Merah, Bunga Mawar Merah dan bunga Karamuntingdapat di jadikan indikator alami. Hal ini ditunjukkan dari perubahan warna di setiap pH. Trayek perubahan warna indikator pada pelarut aquades dan alkohol 95% adalah sama 6- 7 dan 7- 8 yaitu dari warna merah muda t idak berwarna menjad i kuning dan uji stabilitasnya bertahan selama 2 hari .Trayek pH dari ekstrak bunga mawar merahpada berkisar antara pH 7-8 yaitu perubahan warna merah muda menjad i hujau dan kestabilan indikator terhadap lama penyimpanan adalah < 1 hari. Ekstrak bunga karamunting memiliki trayek pH 7-9 yaitu memiliki perubahan warna dari p ink-o range tua. Trayek pH indikator alami hanya mampu bertahan selama 2 hari

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