Jurnal Kimia Terapan Indonesia最新文献_第2页

Conversion of hemicellulose from kenaf core fiber to xylose through dilute sulfuric acid hydrolysis 红麻芯纤维半纤维素稀硫酸水解制木糖的研究

Jurnal Kimia Terapan Indonesia Pub Date : 2019-06-27 DOI: 10.14203/JKTI.V21I1.412

William Judiawan, Y. Sudiyani, E. Nurnasari

引用次数: 3

Use of Mg-Al/hydrotalcite Catalyst in Biodiesel Production from Avocado Seed Oils: A Preliminary Study Mg-Al/水滑石催化剂在鳄梨籽油制备生物柴油中的应用初步研究

Jurnal Kimia Terapan Indonesia Pub Date : 2019-06-27 DOI: 10.14203/JKTI.V21I1.422

Irvan Maulana Firdaus, Tri Fitriany, M. N. Hidayah, A. Soleh, Khilman Husna Pratama, F. Febiyanto

引用次数: 5

Esterification of Waste Cooking Oil Using Ultrasonic: Kinetic Study 废食用油超声酯化反应动力学研究

Jurnal Kimia Terapan Indonesia Pub Date : 2019-01-28 DOI: 10.14203/JKTI.V20I2.397

E. Agustian, J. Jessica, P. Untoro, A. Sulaswatty

引用次数: 4

Antibacterial and Antioxidant activities of Indonesian ginger (jahe emprit) essential oil extracted by hydrodistillation 加氢蒸馏法提取印尼姜精油的抑菌和抗氧化活性

Jurnal Kimia Terapan Indonesia Pub Date : 2019-01-28 DOI: 10.14203/JKTI.V20I2.401

Nurul Azizah, Euis Filaila, S. Salahuddin, E. Agustian, A. Sulaswatty, N. Artanti

{"title":"Antibacterial and Antioxidant activities of Indonesian ginger (jahe emprit) essential oil extracted by hydrodistillation","authors":"Nurul Azizah, Euis Filaila, S. Salahuddin, E. Agustian, A. Sulaswatty, N. Artanti","doi":"10.14203/JKTI.V20I2.401","DOIUrl":"https://doi.org/10.14203/JKTI.V20I2.401","url":null,"abstract":"The rhizome of ginger is commonly used as a spice, food, beverage as well as medicine. Plant essential oils including from ginger have been widely used for food preservation, pharmaceutical and alternative medicines. Currently there are growing interest of consumer for natural sources such as essential oils for natural antibacterial and antioxidant. Jahe emprit (Zingiber officinale var. Amarum) is one of Indonesian ginger variety used to obtain ginger essential oil. The objective of current study was to investigate the effect of solvent to feed (SF) ratio in hydrodistillation process on yield, chemicals content, antibacterial and antioxidant activities of ginger essential oils from jahe emprit. SF ratio used in this study is 0.7: 1, 1.7: 1, 2.7: 1. Chemicals content was conducted using GCMS analysis. Antibacterial assay was conducted using disc diffusion method against Escherichia coli and Staphylococcus aureus. Antioxidant assay was conducted using DPPH free radical scavenging assay. The results show that the highest essential oil yield was obtained from SF ratio 1.7:1 which gave yield of 3.7%. GCMS analysis shows that camphene was always the major compound present in those 3 SF ratio, although the amount present was differed. Besides, 4 other major compounds present were varied. Antibacterial assay using 1% concentration showed ginger oil obtained from SF 0.7:1 and 2.7:1 have the same activities for S. aureus, whereas SF ratio 1.7:1 has the lowest activities. However for E. coli, all SF ratio gave same results. For antioxidant activities at 1000 ppm concentration, the highest activity was obtained from SF ratio 2.7:1","PeriodicalId":17694,"journal":{"name":"Jurnal Kimia Terapan Indonesia","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90672469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The Synthesis of Quinidine Salicylate Ester Compound 奎尼丁水杨酸酯化合物的合成

Jurnal Kimia Terapan Indonesia Pub Date : 2019-01-28 DOI: 10.14203/JKTI.V20I2.403

I. Nurjaya, M. Hanafi, P. Lotulung, T. Ernawati, S. Mursiti

引用次数: 0

Management of Technology Transfer in the Traditional Tempeh and Tofu Industries 传统豆豉和豆腐产业的技术转移管理

Jurnal Kimia Terapan Indonesia Pub Date : 2019-01-28 DOI: 10.14203/JKTI.V20I2.398

I. Suharto, Y. A. Miryanti, Lita Wijaya

{"title":"Management of Technology Transfer in the Traditional Tempeh and Tofu Industries","authors":"I. Suharto, Y. A. Miryanti, Lita Wijaya","doi":"10.14203/JKTI.V20I2.398","DOIUrl":"https://doi.org/10.14203/JKTI.V20I2.398","url":null,"abstract":"The objective is to study the screening of Rhizopus sp inoculum, the utilization of this inoculum for a solid substrate soybean fermentation, to study the trial run of peeling machine and a fluidized bed reactor for the separation of soybean skin and soybean meat, to compare a manual cotton cloth bag filter and a manual rotary filter to separate soybean slurry, to run vertical technology transfer of a manual rotary filter into small scale tofu industry according to hygiene control and education skill training . The benefit of this research is to create a new business and to absorb manpower. The method used is a preparation of Rhizopus sp inoculum for fermentation. Trial run of the peeling machine and three phase fluidized bed reactor for the production of cleaned soybean. Cleaned soybeans are delivered to the production of a cake like fermented soybean , soy milk and tofu. Vertical transfer of technology of a manual rotary filter based on technometric approaches to soy milk and tofu industries. Education skill training was attended by 60 participants. The research results can be shown that the utilization of Rhizopus oligoporus and Rhizopus oryzae inoculum for soybean fermentation into a cake like fermented soybean can be accepted by the 60 panelists and local market. The trial run of peeling machine has a capacity of 30 kg per hour, the trial of three phase fluidized bed reactor can produce cleaned soybean after the total weight of soybean skin of about 35% from the total feed. Technology transfer of a manual rotary filter to the small scale of tofu industries can increase an efficiency of 66.37% for 25 minutes is better than a manual a cotton cloth bag filter with an efficiency of 62.62% for 36 minutes in tofu industry according to the hygiene control. This manual rotary filter can be scale-up into a larger scale. Education skill training was attended by 60 participants of a low income group people in rural areas in order to show how of the know how to do something better according to the hygiene control.","PeriodicalId":17694,"journal":{"name":"Jurnal Kimia Terapan Indonesia","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84273607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Renewability Indicator and Cumulative Degree of Perfection for Gamboeng Tea; Part.2, Exergy Calculation of Tea Factory 干堡茶的可再生性指标及累积完善度第二部分，茶厂的能值计算

Jurnal Kimia Terapan Indonesia Pub Date : 2019-01-28 DOI: 10.14203/JKTI.V20I2.400

T. B. Bardant, M. S. Haq, Arief Amier Rahman Setiawan, S. Harianto, J. Waluyo, Adhi Irianto Mastur, Annisa Dieni Lestari, A. Sulaswatty, S. Sujarwo, N. Rinaldi, E. Wiloso

引用次数: 3

Mechanical and Barrier Properties of PVP-Carbon Dot Nanocomposite Films 聚氯乙烯-碳点纳米复合膜的力学和势垒性能

Jurnal Kimia Terapan Indonesia Pub Date : 2019-01-28 DOI: 10.14203/JKTI.V20I2.392

A. Sjahriza, Z. A. Mas’ud, Komar Sutirah

引用次数: 0

Isolation of Endophytic Fungi QPS 05 from Quercus phillyraeoides A. Gray and Its Potential for α-Glucosidase Inhibitory Activity 栎内生真菌QPS 05的分离及其α-葡萄糖苷酶抑制活性研究

Jurnal Kimia Terapan Indonesia Pub Date : 2018-08-21 DOI: 10.14203/JKTI.V20I1.372

A. W. Indrianingsih, A. I. Prihantini, S. Tachibana

引用次数: 1

Antimicrobial Activity of Selenium Nanoparticles Synthesized by Actinomycetes Isolated from Lombok Island Soil Samples 龙目岛土壤样品中放线菌合成纳米硒的抗菌活性研究

Jurnal Kimia Terapan Indonesia Pub Date : 2018-08-21 DOI: 10.14203/JKTI.V20I1.374

S. Ratnakomala, N. F. Sari, F. Fahrurrozi, P. Lisdiyanti

{"title":"Antimicrobial Activity of Selenium Nanoparticles Synthesized by Actinomycetes Isolated from Lombok Island Soil Samples","authors":"S. Ratnakomala, N. F. Sari, F. Fahrurrozi, P. Lisdiyanti","doi":"10.14203/JKTI.V20I1.374","DOIUrl":"https://doi.org/10.14203/JKTI.V20I1.374","url":null,"abstract":"AbstractA total of 98 actinomycetes were isolated from the soil and litter samples collected from the cacao and coffee plantation in Lombok Island, West Nusa Tenggara, Indonesia. These isolates were screened for their antimicrobial activity. Among 98 isolated strains, only 24 isolates showed antimicrobial activity against test microorganisms of which 20.4% were active against Bacillus subtilis BTCC B-612, 14.3% against Staphylococcus aureus BTCC B-611, and 5.1% against Escherichia coli BTCC B-609. Out of these 24 isolates, 3 were found to be able to grow in medium containing 3 mM Selenium oxide of which the culture were changed color to red. Two of the best strains, L-155 and L-156, were selected for assessing production of Selenium nanoparticles. Bioreduction of selenium nanoparticles was confirmed by UV–visible spectrophotometer which showed peak between 300 and 320 nm. Biosynthesized selenium nanoparticle from isolate actinomycetes L-155 and L-156 were found to have a broad spectrum of activity against the tested microorganisms: Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Micrococcus luteus, and Candida albicans. This study showed rapid and eco-friendly synthesis of selenium nanoparticles from soil actinomycetes. Most of these active isolates revealed to possess antibacterial property.","PeriodicalId":17694,"journal":{"name":"Jurnal Kimia Terapan Indonesia","volume":"116 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73533139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5