cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota samarinda,
Kalimantan timur
INDONESIA
PROSIDING SEMINAR KIMIA
Published by Universitas Mulawarman
ISSN : -     EISSN : -     DOI : -
Core Subject : Science,
Chemistry
Arjuna Subject : -
Articles 502 Documents
 6   7   8   9   10 
UJI TOKSISITAS (Brine Shrimp Lethality Test) DAN AKTIVITAS HIPOGLIKEMIK DARI DAUN TERAP (Artocarpus odoratissimus B.) DENGAN METODE TOLERANSI GLUKOSA PADA MENCIT JANTAN Nur Futihah; Harlinda Kuspradini
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2013
Publisher : PROSIDING SEMINAR KIMIA

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

Abstract

Phytochemical, brine shrimp lethality and antibacterial activity tests of various fraction from terap leaf (Artocarpus odoratissimus B.) from Sungai Siring, East Samarinda has been carried out. Artocarpus odoratissimus B. bark was extracted with ethanol then concentrated by rotary evaporator. The total extract was fractioned with n-hexane, and ethyl acetate. Based on the secondary metabolites phytochemical test of the Artocarpus odoratissimus B. bark show that total extract and in various fraction is contain flavonoid and steroid. Brine Shrimp Lethality Test (BSLT) method used the shrimp larvas of Artemia salina Leach to study the mortality effect that caused by the leaves extracts of Artocarpus odoratissimus B.. The data obtained was analyzed by using SAS Probit analysis. Based on the LC 50 value from the result of BSLT method, the total extract and etil asetat with the highest toxicity is n-hexane extract. Hypoglicemic activity test was conducted using glucose tolerance to the mice. In this test, have shown that the most active fraction to lower blood glucose levels using a total extrac dose is 25 mg/kg BB with the percentage reduction in blood glucose levels by 49% and extract showed the best activity in the 150 th minute.
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
Publisher : PROSIDING SEMINAR KIMIA

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

Abstract

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
Publisher : PROSIDING SEMINAR KIMIA

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

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
Publisher : PROSIDING SEMINAR KIMIA

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

Abstract

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
Publisher : PROSIDING SEMINAR KIMIA

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

Abstract

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.
KAJIAN KANDUNGAN PATI, AMILOSA DAN AMILOPEKTIN TEPUNG DAN PATI PADA BEBERAPA KULTIVAR PISANG (Musa spp) Miftakhur Rohmah
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2013
Publisher : PROSIDING SEMINAR KIMIA

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

Abstract

Pisang merupakan salah satu buah yang cukup perspektifdalam pengembangan sumber pangan lokal dan sumber karbohidrat non beras, sehingga dapat dijadikan sumber tepung dan pati baru. Pengolahan pisang menjadi tepung dan pati pisang merupakan salah satu alternatif untuk mengurangi kehilangan pasca panen. Penelitian ini dilakukan untuk mendapatkan informasi kandungan pati beserta komponen penyusunnya berupa amilosa dan amilopektin dari pisang kapas, mahuli dan talas. Tepung dan pati pisang kapas memiliki kadar pati, amilosa dan amilopektin tertinggi yaitu 78,25 %, 18,17 % dan 60,08 %. Hasil penelitian ini dapat digunakan untuk mengetahui salah satu kriteria mutu tepung dan pati yang berasal dari pisang, baik sebagai bahan pangan maupun non-pangan.
Pengembangan Industri Kimia Berbasis Sumberdaya Alam Hayati Sebagai Alternatif Prospektif Menuju Pembangunan Nasional Berkelanjutan Hanapi Usman
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2013
Publisher : PROSIDING SEMINAR KIMIA

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

Abstract

BACK TO NATURAL BERSAMA KIMIA BAHAN ALAMKimia bahan alam dalam pengertian luas adalah semua konstituen kimiawi yang diperoleh dari alam, baik yang berasal dari hewan maupun tumbuhan termasuk pula hasil-hasil pertambangan. Namun dalam tulisan ini, yang dimaksudkan sebagai kimia bahan alam adalah konstituen “organik bahan alam” yang berasal dari sumberdaya hayati, lebih khusus metabolit sekunder yang akhir-akhir ini semakin banyak mendapat perhatian para peneliti kimia dan semakin diandalkan sebagai penopang perkembangan industri maju diberbagai negara. Selogan Back to natural semakin meluas dan menjadi alternatif dalam penyelesaian berbagai masalah besar yang dihadapi masyarakat global saat ini. Terutama dalam pemenuhan bahan sandang, pangan serta bahan obat-obatan yang semakin meningkat tajam. Meski muncul sebagai alternatif baru, kiranya selogan tersebut dimaknai sebagai kebersesamaan dengan alam, tidak menjadikan alam semata-mata sebagai objek yang terus dieksploitasi tanpa terkendali.“Beri yang terbaik untuk alam, karenanya kita akan mendapatkan terbaik pula darinya.” Selama ini, sumber devisa pembangunan nasional bertumpu pada bahan alam berupa hasil-hasil tambang. Eksploitasi komponen kimia alam tak-terbaharukan yang terjadi selama ini semakin memperihatinkan, sumberdaya alam berupa material tambang batu bara, emas, nikel, gas dan minyak bumi semakin menipis, situasi ini kian menyeret kita pada kebangkrutan. Karenanya diperlukan reorientasi pengelolaan dan pemanfaatan sumberdaya alam yang lebih bijak dan berkelanjutan. Sebagai negara yang memiliki sumberdaya alam hayati melimpah bangsa Indonesia seharusnya memprioritaskan pengembangan IPTEKS yang berorientasi pada sumber daya alam hayati.Disampaikan dalam Seminar Nasional Kimia, Himpunan Kimia Indonesia Cab. Kalimantan Timur, Samarinda 9 November 2013
Generic Skills Development in Science and Chemistry Muhamad A. Martoprawiro
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
Publisher : PROSIDING SEMINAR KIMIA

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

Abstract

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
Publisher : PROSIDING SEMINAR KIMIA

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

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
UJI BIOAKTIVITAS EKSTRAK AKAR TABAR KEDAYAN (Aristaolochia foveolata Merr) Siti Jubaidah; Anita Apriliana; Heri Wijaya
PROSIDING SEMINAR KIMIA SEMINAR NASIONAL KIMIA 2014
Publisher : PROSIDING SEMINAR KIMIA

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

Abstract

East Kalimantan has very much plant diversity of the various ethnic Dayak. One is a plant Tabar Kedayan (Aristolochia foveolata Merr) contained in Malinau district, empirically efficacious as antidiarrheal, antidote (anti-venom), bidder alcohol for drinkers, to the efficacy of this type of p lant Aristolochia foveolata Merr not scientifically confirmed, this is because scientific research is still at least as well as the information contained bioactive compounds in the roots of Aristolochia foveolata Merr which has not been published and similarly with bio logical act ivity is not widely studied. This study aims to determine the chemical constituents of plants Tabar kedayan phytochemical screening form, which includes the bioactivity test toxicity test method Lethaly Brine Shrimp Test, antibacterial act ivity and antio xidant activity. The results of research on phytochemical screening of chemical co mpounds are alkaloids, tannins and flavonoids. Bioactivity test results on the toxicity test method BSLT 0,5,10,25 and 50 pp m concentration with the percentage of death is 0,40,60,80 and 100% level of to xicity of the ethanol extract of the roots of Tabar kedayan 7.269 ppm LC50 values obtained and included in tinggat highly toxic toxicity is 0-250 ug / ml, to test antibakter in Escherichia co li concentration of 5%, 10%, 20%, and 30% inhibition zones formed with anaverage diameter is 4.45 mm, 6.56 mm, 7.86 mm and 8.01 mm, whereas the bacterium Staphylococcus aureus is in order, with a concentration of 5%, 10%, 20% and 30% inhibition zones formed with an ave rage d iameter is 4.49 mm, 5.83 mm, 6.61 mm and 7.55 mm. Test results obtained antio xidant yellow spots after being sprayed DPPH can be concluded that the ethanol extract has antio xidant power.

Page 8 of 51 | Total Record : 502

 6   7   8   9   10 

Filter by Year

2013 2025


Reset
Filter By Issues
All Issue Vol 4 No 1 (2025): Prosiding SNK 2025 Vol 3 No 2 (2025): Prosiding SNKT 2024 Vol 3 No 1 (2024): Prosiding SNK 2024 Vol 2 No 2 (2024): Prosiding SNKT III 2023 Vol 2 No 1 (2023): Prosiding SNK 2023 Vol 1 No 2 (2023): Prosiding SNKT II 2022 Vol 1 No 1 (2022): Prosiding SNK 2022 2021: SEMINAR NASIONAL KIMIA 2021 Prosiding SNKT Himpunan Mahasiswa Kimia FMIPA UNMUL 2021 2020: Prosiding Seminar Nasional Kimia Berwawasan Lingkungan (SNK-BL) 2020 Seminar Nasional Himpunan Mahasiswa Kimia 2020 SEMINAR NASIONAL KIMIA 2019 SEMINAR NASIONAL KIMIA 2018 SEMINAR NASIONAL KIMIA 2017 PROCEEDING OF INTERNATIONAL CONFERENCE 2015 SEMINAR NASIONAL KIMIA 2014 SEMINAR NASIONAL KIMIA 2013 More Issue