International Journal of Science and Engineering最新文献_第4页

ANALYSIS OF CHEMICAL AND MICROBIAL CHANGE DURING STORAGE OF OVERRIPE TEMPEH POWDER AS SEASONING MATERIAL 过熟豆豉粉佐料贮藏过程中化学及微生物变化分析

International Journal of Science and Engineering Pub Date : 2015-04-15 DOI: 10.12777/IJSE.8.2.131-134

Tia Raisha Hassanein, E. Prabawati, M. Gunawan-Puteri

{"title":"ANALYSIS OF CHEMICAL AND MICROBIAL CHANGE DURING STORAGE OF OVERRIPE TEMPEH POWDER AS SEASONING MATERIAL","authors":"Tia Raisha Hassanein, E. Prabawati, M. Gunawan-Puteri","doi":"10.12777/IJSE.8.2.131-134","DOIUrl":"https://doi.org/10.12777/IJSE.8.2.131-134","url":null,"abstract":"Tempeh and other soy-derived products are historically and currently some of the most important foods in the Asian region where diets remain predominantly plant-based. Overripe tempeh ( tempe semangit ) is a term used for over-fermented tempeh with pungent odor and darkening appearance commonly used in Javanese cuisine. Unique taste and odor of overripe tempeh lead to the exploration of its potencies as condiment, which may add the nutritional, safety and economic values of tempeh. In this research, overripe tempeh is made into powder for better appearance and availability. Oven drying at 60 o C and freeze drying were applied to the overripe tempeh until it reached moisture content below 5%, followed by subsequent crushing into powder using electric grinding machine. As seasoning material, the tempeh powder and overripe tempeh powder were then analyzed for their stability. Observations in chemical and microbial changes during storage were also applied to selected product during storage. Parameters observed during the research are: moisture content, protein content, acid content, total microbial count and total coliform. Oven dried overripe tempeh (S60) has higher moisture content but lower in acid content, total microbial count and total coliform compared to freeze dried overripe tempeh (SFD).","PeriodicalId":14209,"journal":{"name":"International Journal of Science and Engineering","volume":"8 1","pages":"131-134"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66731045","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: 12

Assessment of Water Quality Using Macrobenthos as Bioindicator and Its Application on Abundance-Biomass Comparison (ABC) Curves 大型底栖生物作为生物指标评价水质及其在丰度-生物量比较曲线上的应用

International Journal of Science and Engineering Pub Date : 2015-04-15 DOI: 10.12777/IJSE.8.2.84-87

S. Pawhestri, J. W. Hidayat, S. Putro

{"title":"Assessment of Water Quality Using Macrobenthos as Bioindicator and Its Application on Abundance-Biomass Comparison (ABC) Curves","authors":"S. Pawhestri, J. W. Hidayat, S. Putro","doi":"10.12777/IJSE.8.2.84-87","DOIUrl":"https://doi.org/10.12777/IJSE.8.2.84-87","url":null,"abstract":"Abstract -Activities of aquaculture and industry which is directly adjacent to an aquatic environment may potentially result in increasing organic matter and causes a decreasing quality of water in it. Macrobenthos can be used as an bioindicators to detect environmental disturbances occur in the aquatic environment. This study aims to determine the level of environmental disturbance in aquatic environments using macrobenthic assemblages and their application in the abundance and biomass curves and it was compared to the values of diversity and similarity indices. Locations of this study is polyculture ponds and coastal of PT. Kayu Lapis Indonesian located in Mororejo Village, Central Java. Based on the abundance of macrobenthos results shows that in coastal area of PT. Kayu Lapis Indonesia is dominated by Cirratulidae (60%) from Polychaeta while in polyculture ponds is dominated by Potamididae (58%). Based on the abundance and biomass comparison (ABC) curves, the polyculture ponds were categorized as undisturbed area, whereas the coastal area of PT. Kayu Lapis Indonesia was categorized as moderately polluted for the second sampling time. Whilst the values of diversity (H’) and similarity (e) indices indicated low for all stations, the ABC curve of macrobetnhic assemblages is effective to demonstrate the level of environmental disturbance occurs in aquatic environments.","PeriodicalId":14209,"journal":{"name":"International Journal of Science and Engineering","volume":"79 1","pages":"84-87"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66731162","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: 18

STUDY ADSORPTION DESORPTION OF MANGANESE(II) USING IMPREGNATED CHITIN-CELLULOSE AS ADSORBENT 浸渍几丁质纤维素作为吸附剂对锰的吸附解吸研究

International Journal of Science and Engineering Pub Date : 2015-04-15 DOI: 10.12777/ijse.8.2.104-108

A. Lesbani, Ema Veronika Turnip, R. Mohadi, N. Hidayati

{"title":"STUDY ADSORPTION DESORPTION OF MANGANESE(II) USING IMPREGNATED CHITIN-CELLULOSE AS ADSORBENT","authors":"A. Lesbani, Ema Veronika Turnip, R. Mohadi, N. Hidayati","doi":"10.12777/ijse.8.2.104-108","DOIUrl":"https://doi.org/10.12777/ijse.8.2.104-108","url":null,"abstract":"Abstract- Study adsorption desorption of manganese(II) using impregnated chitin-cellulose as adsorbent has been carried out. Chitin was extracted from snail shell and cellulose isolated from rice straw. Chitin and cellulose were impregnated using thiourea as impregnant agent. Characterization of chitin and cellulose was performed using FTIR spectroscopy, determination of water content, and ash content, while impregnated chitin-cellulose was characterized using FTIR spectrophotometer and X-Ray diffractometer. The adsorption of Mn(II) on impregnated chitin-cellulose was studied through determination of adsorption time and the influence of Mn(II) concentration, while desorption was carried out sequentially using various reagents. The results shown that chitin and cellulose from extraction processes are has similar FTIR spectrum compared to chitin and cellulose standard. The FTIR spectrum of impregnated chitin-cellulose shows both vibration of chitin and cellulose appeared and indicated successfully impregnate. These results were also equal to XRD pattern analysis. The water and ash contents of chitin are 0.038% and 0.043 while for cellulose are 0.184% and 0.165%, respectively. The adsorption of Mn(II) on chitin and cellulose are quite similar kinetically, while adsorption of Mn(II) on impregnated chitin-cellulose is higher at the same time with chitin and cellulose. In the low concentration of Mn(II), adsorption phenomena are similar on chitin, cellulose, and impregnated chitin-cellulose. Desorption process of Mn(II) on the adsorbents shows sodium etilenediamine tetra acetate able to desorp Mn(II) up to 68% higher than other reagents.","PeriodicalId":14209,"journal":{"name":"International Journal of Science and Engineering","volume":"8 1","pages":"104-108"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66730701","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: 1

The Impact of Land Use on Hydrological Characteristics in Kaligarang Watershed 喀里加郎流域土地利用对水文特征的影响

International Journal of Science and Engineering Pub Date : 2015-04-15 DOI: 10.12777/ijse.8.2.125-130

S. Budiyanto, S. Tarigan, N. Sinukaban, K. Murtilaksono

引用次数: 7

The Sex Pheromone Content of the Spodoptera Exigua (Hubner) Under Artificial and Natural Diets 人工和天然日粮下黑斑夜蛾性信息素含量的比较

International Journal of Science and Engineering Pub Date : 2015-04-15 DOI: 10.12777/IJSE.8.2.146-150

K. Mujiono, Witjaksono Witjaksono, N. S. Putra

{"title":"The Sex Pheromone Content of the Spodoptera Exigua (Hubner) Under Artificial and Natural Diets","authors":"K. Mujiono, Witjaksono Witjaksono, N. S. Putra","doi":"10.12777/IJSE.8.2.146-150","DOIUrl":"https://doi.org/10.12777/IJSE.8.2.146-150","url":null,"abstract":"The control of the Spodoptera exigua Hubner (Lepidoptera: noctuidae) through sex pheromones is feasible by mass trapping, mating disruption, and population monitoring. Both synthetic sex pheromones and virgin females were used on the mass trapping and population monitoring methods as attractant source. The virgin females must be available through the mass rearing without affected on its pheromone content production. Therefore, a study on the response of the female’s pheromone which reared by artificial and natural diets was important to be done. The GCMS analysis result had shown that female’s pheromone glands extract which had reareded by natural diets contained tetradecan-1-ol (0.23%) pheromone compounds and several other compounds, such as hexadecane (14.31%), heptadecane (0.42%), nonadecane (1.09%), and beta-caryophyllene (1.37%). Meanwhile, only tridecanol (3.39%), hexadecane (8.52%), nonadecane (0,23%), and trans-caryophyllene (3.11%) compounds had been found on the artificial ones. The cross-copulation test showed that both types of moths could do mating. The field trapping test showed that both extracts were attractive to males","PeriodicalId":14209,"journal":{"name":"International Journal of Science and Engineering","volume":"8 1","pages":"146-150"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.12777/IJSE.8.2.146-150","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66730895","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: 7

Take Advantage of Wasteful Batang Hari Irrigation For Electricity Services Improvement 利用浪费的巴塘哈里灌溉改善电力服务

International Journal of Science and Engineering Pub Date : 2015-04-15 DOI: 10.12777/IJSE.8.2.167-170

B. Istijono, A. Hakam

引用次数: 0

Preparation of Natural Zeolite for Air Dehumidification in Food Drying 食品干燥空气除湿用天然沸石的制备

International Journal of Science and Engineering Pub Date : 2015-04-15 DOI: 10.12777/ijse.8.2.80-83

M. Djaeni, L. Kurniasari, S. Sasongko

引用次数: 12

Indonesian Efforts to Conserve Gembrong Goats 印度尼西亚保护根隆山羊的努力

International Journal of Science and Engineering Pub Date : 2015-04-15 DOI: 10.12777/IJSE.8.2.88-94

H. Hasinah, I. Inounu, S. Subandriyo

{"title":"Indonesian Efforts to Conserve Gembrong Goats","authors":"H. Hasinah, I. Inounu, S. Subandriyo","doi":"10.12777/IJSE.8.2.88-94","DOIUrl":"https://doi.org/10.12777/IJSE.8.2.88-94","url":null,"abstract":"Gembrong goat are mainly found in eastern part of Bali Island, especially in the village of Tumbu, Karangasem. Throughout Indonesia these goats are found no more than 50 heads. This condition puts Gembrong goat in a critical status that indicates the need of emergency and quick action. The present study was carried out to assess the characteristic of this breed and to preserve it through some proposed action plan. Information was obtained by personal observation and discussion with the leader of farmer group. Body weight (BW) and various body measurement were taken from 15 head of Gembrong goat. In general, the color of Gembrong goat body is white, or partly brown or solid brown. The average body weight is of 23.2 kg for females and 30.7 kg for males. The averages Body length of males is 60 cm, height 58.2 cm, and 14.4 cm ear length in males, and in females body length is 56.2 cm, height 55.1 cm and ear length 14.2 cm. To preserve Gembrong goat population from extinction collaborative activities is needed, namely: (1) multiplication of existing Gembrong goat population, (2) Rescuing animal genetic material and (3) up-grading female Kacang goat with Gembrong male goat as to achieve 99% Gembrong goat genetic composition.","PeriodicalId":14209,"journal":{"name":"International Journal of Science and Engineering","volume":"8 1","pages":"88-94"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66731238","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: 1

Initial study of Nickel Electrolyte for EnFACE Process EnFACE法镍电解液的初步研究

International Journal of Science and Engineering Pub Date : 2015-04-15 DOI: 10.12777/IJSE.8.2.135-140

T. Widayatno, S. Roy

{"title":"Initial study of Nickel Electrolyte for EnFACE Process","authors":"T. Widayatno, S. Roy","doi":"10.12777/IJSE.8.2.135-140","DOIUrl":"https://doi.org/10.12777/IJSE.8.2.135-140","url":null,"abstract":"Nickel electrolyte for a micro-pattern transfer process without photolithography, EnFACE, has been developed. Previous work on copper deposition indicated that a conductivity of ~2.7 Sm -1 is required. Electrochemical parameters of electrolyte i.e. current density and overpotential are also crucial to govern a successful pattern replication. Therefore, the investigation focused on the measurement of physicochemical properties and electrochemical behaviour of the electrolyte at different nickel concentrations and complexing agents of chloride and sulfamate. Nickel electrolytes containing sulfamate, chloride and combined sulfamate-chloride with concentrations between 0.14 M and 0.3 M were investigated. Physicochemical properties i.e. pH and conductivity were measured to ensure if they were in the desired value. The electrochemical behaviour of the electrolytes was measured by polarisation experiments in a standard three-electrode cell. The working electrode was a copper disc (surface area of 0.196 cm 2 ) and the counter electrode was platinum mesh. The potential was measured againts a saturated calomel reference electrode (SCE). The experiments were carried out at various scan rate and Rotating Disc Electrode (RDE) rotation speed to see the effect of scan rate and agitation. Based on the measured physicochemical properties, the electrolyte of 0.19 M nickel sulfamate was chosen for experimentation. Polarisation curve of agitated solution suggested that overall nickel electrodeposition reaction is controlled by a combination of kinetics and mass transfer. Reduction potential of nickel was in the range of -0.7 to -1.0 V. The corresponding current densities for nickel deposition were in the range of -0.1 to -1.5 mA cm- 2 .","PeriodicalId":14209,"journal":{"name":"International Journal of Science and Engineering","volume":"8 1","pages":"135-140"},"PeriodicalIF":0.0,"publicationDate":"2015-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.12777/IJSE.8.2.135-140","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66731272","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

Effects of aligned magneticfield and radiation on the flow of ferrofluids over a flat plate with non-uniform heat source/sink 定向磁场和辐射对非均匀热源/热源平板上铁磁流体流动的影响

International Journal of Science and Engineering Pub Date : 2015-04-15 DOI: 10.12777/IJSE.8.2.151-158

S. N., Raju Csk, Sulochana C, S. V.

引用次数: 39