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2nd International Conference on Agriculture, Environment and Food Security, AEFS 2018

作者： Ginting, Nurzainah Manik, A. Hasnudi Ginting, N. Aulia, D.N. Marpaung, B.O. Rahman, N.V. Hasanah, U. Animal Production Program Study Faculty of Agriculture Universitas Sumatera Utara Medan Indonesia Architecture Program Study Faculty of Engineering Universitas Sumatera Utara Indonesia Toba Lake and Sustainable Tourism Working Group Universitas Sumatera Utara Medan Indonesia

A declining trend of Samosir Panorusan goat population has been identified. As the Panorusan is an endemic and endangered species goat where the pure breed only 250,000 heads left, a research was conducted in order to find the cause factors for declining trend of population from April to June 2018 in Pangururan District, Samosir Regency. The method used was multiple linier regression analysis with variabel limitations such as goat feed, disease, breeders'experience, local culture and marketing rate of productive ewe. This research was conducted by asking directly to Panorusan goat breeders. The total of 55 goat breeders was divided into 2-3 breeders/villages. The results of this study indicated that the variable of local culture was significantly as a dominant factor that causing a declining trend of Samosir Panorusan goat population. © Published under licence by IOP Publishing Ltd.

关键词： Regression analysis

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Analysis total plate count (tpc) and organoleptic test on seaweed chips 9

Analysis total plate count (tpc) and organoleptic test on se...

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9th International Seminar on New Paradigm and Innovation of Natural Sciences and Its Application, ISNPINSA 2019

作者： Zainuri, M. Endrawati, H. Winarni, S. Arifan, F. Setyawan, A. Hapsari, H.P. Department of Oceanography Faculty of Fisheries and Marine Science Diponegoro University Semarang Indonesia Department of Marine Sciences Faculty of Fisheries and Marine Science Diponegoro University Semarang Indonesia Department of Biostatistics and Population Study Public Health Diponegoro University Semarang Indonesia Programme Diploma of Chemical Engineering Vocational School Faculty Diponegoro University Semarang Indonesia Department of Physics Faculty of Science and Mathematics Diponegoro University Indonesia

Some seaweed in Indonesia has economic value, such as jelly-producing seaweed, namely Gracilaria, Gelidium, Gelidiopsis, and Hypnea, carrageenan-producing seaweed, namely Euchema spinosium, Euchema cottonii, Euchema striatum, algin-producing seaweed, that Sargassum, Macrocystis and Lessonia. This study aims to determine the microbial contamination on seaweed chips with total plate count (TPC) method and organoleptic test. The samples used were Sargassum chips and Eucheuma cottonii chips with variations in drying of seaweed raw materials. Seaweed chips samples were tested for microbial contamination. The number of microbial contamination on Sargassum chips was 2.6 102 CFU/ml and E. cottonii chips was 2.8 102 CFU/ml. Based on TPC analysis concluded that Sargassum chips and E. cottonii chips were both safe for consumption because the amount of microbial contamination does not exceed the maximum limit of the Indonesian National Standard, which is 105 CFU/ml. Based on organoleptic tests, Sargassum chips were preferable than E. cottonii chips. © Published under licence by IOP Publishing Ltd.

关键词： Seaweed

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Electro-Fenton for Industrial Wastewater Treatment: A Review 4

Electro-Fenton for Industrial Wastewater Treatment: A Review

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4th International Conference on Energy, Environment, Epidemiology and Information System, ICENIS 2019

作者： Marlina, Elin Purwanto Master Program of Environmental Science School of Postgraduate Studies Diponegoro University Semarang Indonesia Department of Chemical Engineering Faculty of Engineering Diponegoro University Semarang Indonesia

Electro-Fenton is part of electrochemical advanced oxidation processes (EAOPs) which have been widely used to treat various types of waste such as color, drugs, phenol compounds, leachate, surfactants, and others. This article focuses on the effects of various operating parameters and recent developments in the electro-Fenton process, and then their optimum ranges for maximum pollutant removal and various pollutants removed by this process is observed. © The Authors, published by EDP Sciences, 2019.

关键词： Wastewater treatment

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The effect of process temperature and financial feasibility on layer chicken salted egg

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AIP Conference Proceedings 2024年第1期2970卷

作者： Erdi Suroso Tanto Pratondo Utomo Sandi Asmara Purnama Edi Santosa M. Ariq Ibrahim Rita Monica Sitorus Dwi Apriyani Nurhayati Rendi Sagita Putri Faradila Khofifah Tul Napsiyah Azizah Mutia Okti Vanesha Arby Tamaila Irsyad Rafli Muhammad Abuzar Ghifari Agroindustrial Technology Study Program Agriculture Faculty Lampung University Jl. Prof. Dr. Ir. Soemantri Brodjonegoro No. 1 Bandar Lampung Lampung 35145 Indonesia Agriculture and Biosystem Engineering Study Program Agriculture Faculty Lampung University Jl. Prof. Dr. Ir. Soemantri Brodjonegoro No. 1 Bandar Lampung Lampung 35145 Indonesia Husbandary Study Program Agriculture Faculty Lampung University Jl. Prof. Dr. Ir. Soemantri Brodjonegoro No. 1 Bandar Lampung Lampung 35145 Indonesia Student of Agroindustrial Technology Study Program Agriculture Faculty Lampung University Jl. Prof. Dr. Ir. Soemantri Brodjonegoro No. 1 Bandar Lampung Lampung 35145 Indonesia

Salted eggs in Indonesia are produced using duck eggs, but in this research salted egg are examined using layer chicken egg especially for diversification and effort to improve its added value. This research aims to examine production of layer chicken salted egg in different temperature processes and its finansial feasibility. The results show that the most suitable temperature process for layer chicken salted egg is 45°C for 4 days based on organoleptic test result on egg yolk, egg white, and overall performance.

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Recent advancements in the targeted delivery of Gemcitabine: Harnessing nanomedicine for enhanced cancer therapy

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OpenNano 2023年 13卷

作者： Pourmadadi, Mehrab Aslani, Ali Hassan, Dilawar Sani, Ayesha Rahdar, Abbas I． Medina, Dora Abdouss, Majid Romanholo Ferreira, Luiz Fernando Department of Biotechnology School of Chemical Engineering College of Engineering University of Tehran Tehran Iran Department of Chemistry Amirkabir University of Technology Tehran Iran Tecnologico de Monterrey School of Engineering and Sciences Atizapan de Zaragoza Estado de Mexico 52926 Mexico Department of Physics Faculty of Sciences University of Zabol Zabol 538-98615 Iran Tecnologico de Monterrey Institute of Advanced Materials for Sustainable Manufacturing Nuevo Leon Monterrey 64849 Mexico Graduate Program in Process Engineering Tiradentes University (UNIT) Av. Murilo Dantas 300 Farolândia Aracaju-Sergipe 49032-490 Brazil Institute of Technology and Research (ITP) Tiradentes University (UNIT) Av. Murilo Dantas 300 Farolândia Aracaju-Sergipe 49032-490 Brazil

Gemcitabine (GEM) is a chemotherapeutic drug widely used for treating pancreatic cancer and other cancers. Despite its efficacy, GEM is associated with adverse side effects and tumor resistance, hampering its therapeutic outcomes. To address these challenges, innovative strategies have emerged to enhance GEM delivery. This comprehensive review explores various distribution systems, including polymer-based platforms, liposomes, and inorganic nanoparticles, highlighting their unique characteristics for improving GEM efficacy in cancer treatment. Additionally, we discuss the promising approach of codelivery with genes and present several methods for augmenting GEM's chemotherapeutic properties. Our findings shed light on novel insights and provide recommendations for overcoming the limitations associated with GEM, guiding researchers and clinicians toward more effective cancer therapies. © 2023 The Authors

关键词： Co-delivery Inorganic nanoparticles Lipid-based nanoparticles Polymeric nanoparticles

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Carbon dioxide capture using waste tire based adsorbent

Carbon dioxide capture using waste tire based adsorbent

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International Conference on Mechanical engineering, Energy and Advanced Materials, ICMEEAM 2018

作者： Duduku, K. Anisuzzaman, S.M. Bono Teo, B.K. Rao, V.V.B. Chemical Engineering Program Faculty of Engineering Universiti Malaysia Sabah Sabah Kota Kinabalu88400 Malaysia College of Technology Osmania University Hyderabad500007 India

In this study, a waste tire derived activated carbon (AC) was assessed as a solid sorbent for CO2 capture. The objectives of this study is to determine the effectiveness of AC from waste rubber tire via chemically activation with potassium hydroxide (KOH) as a low cost solid adsorbent on the adsorption of CO2 from the mixture of N2 and CO2 at different adsorption temperature, adsorption flow rate and impregnation ratio. The reactor temperatures were 30°C, 40 °C and 50°C and the flow rate was 50 cm3/min, with an impregnation ratio of 1 and 1.5. The breakthrough time was found to decrease with increasing of impregnation ratio of KOH and decreasing of adsorption temperature and flow rate. The AC with 1.5 KOH impregnation ratio has shown the best CO2 adsorption capacity among the adsorbents studied and the adsorption capacity is 238.7mg/g of adsorbent at 30°C. © 2019 IOP Publishing Ltd. All rights reserved.

关键词： Carbon dioxide

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Product design of memory-boosting jelly drink for young adult

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AIP Conference Proceedings 2022年第1期2537卷

作者： Misri Gozan Brigitta Angelina Cindyara Nayanda Nur Annisa Ruth Silva Amanat Taqwa Woro Bismo 1Bioprocess Engineering Program Department of Chemical Engineering Faculty of Engineering Universitas Indonesia Kampus UI Depok West Java 16424 Indonesia 2Research Center for Biomedical Engineering Faculty of Engineering Universitas Indonesia Kampus UI Depok West Java 16424 Indonesia

Memory loss can occur in an older adult or even a younger age person. From our preliminary survey with 85 respondents, 91% of respondents ever experienced memory loss symptoms, and 63% have ever consumed memory-boosting products. This study examines a product development of a jelly drink for memory boosting, especially for youth and young adults using Brahmi (Bacopa monnieri), one of the herbal plants that can increase cell neurogenesis in the hippocampus. Initially, the needs of the respondents were classified, benchmarked with available similar products, and then transformed into specifications. The concept generation and selection were carried to fulfill the specification, including regulatory requirements. Three concepts were market-tested in jelly drink, milkshake, and syrup, where 53% prefer jelly drink. The final; formulation ingredients include Bacopa monnieri, Honey, Blueberry extract, Sugar, Agar, Jelly, Water, and Sodium benzoate.

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Techno-Economic evaluation of oil palm empty fruit bunch-based encapsulated lignin production process

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AIP Conference Proceedings 2022年第1期2537卷

作者： Muhammad Yusuf Arya Ramadhan Sarah Salsabila Muhammad Arif Darmawan Misri Gozan 1Bioprocess Engineering Program Department of Chemical Engineering Faculty of Engineering Universitas Indonesia Kampus UI Depok West Java 16424 Indonesia 2Research Center for Biomedical Engineering Faculty of Engineering Universitas Indonesia Kampus UI Depok West Java 16424 Indonesia

Oil Palm Empty Fruit Bunch (EFB) is the main solid waste from the palm oil processing industry. One of the main constituent polymers of Oil Palm EFB is lignin. Currently, lignin is used as wood adhesives. The antioxidant activity of lignin has received much attention recently because of the structure of the polyphenols possessed by lignin. Although previous studies have shown that lignin has antioxidant activity, lignin is easily oxidized while in storage. Therefore, we need materials to maintain lignin stability. This research analyzes the investment feasibility of a lignin production plant encapsulated from oil palm empty fruit bunches (EFB) as raw material. The factory will be built in the Kertajaya area, Banten, Indonesia, with a project life span of 15 years and is targeted to meet a 1% market share. This study compared four pretreatment processes: alkaline with NaOH, acid-alkaline, steam explosion, and alkaline with NH4OH. The production process simulation uses the SuperPro Designer v9.5 to obtain mass, energy, and economic parameter data. Simulations show the production of encapsulated lignin with the alkaline pretreatment using the NaOH method as the best alternative with the profitability parameters in the form of NPV, IRR, and PBP, of USD 6,078,000; 35.23 % and 3.19 years, respectively, at the product selling price of USD 40/kg.

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The potency of hydrothermally prepared sulfated silica (SO4/SiO2) as a heterogeneous acid catalyst for ethanol dehydration into diethyl ether

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Chemosphere 2023年第1期341卷

作者： Pratika, Remi Ayu Wijaya, Karna Utami, Maisari Mulijani, Sri Patah, Aep Alarifi, Saud Ram Mani, Ravishankar Kumar Yadav, Krishna Ravindran, Balasubramani Chung, Woo Jin Chang, Soon Woong Munusamy-Ramanujam, Ganesh Study Program of Chemistry Faculty of Mathematics and Natural Sciences Universitas Palangka Raya Palangka Raya Indonesia Department of Chemistry Faculty of Mathematics and Natural Sciences Universitas Gadjah Mada Yogyakarta55281 Indonesia Department of Chemistry Faculty of Mathematics and Natural Sciences Universitas Islam Indonesia Yogyakarta55584 Indonesia Department of Chemistry Faculty of Mathematics and Natural Sciences Institut Pertanian Bogor Bogor Indonesia Department of Chemistry Faculty of Mathematics and Natural Sciences Institut Teknologi Bandung Bandung Indonesia Department of Zoology College of Science King Saud University P.O. Box 2455 Riyadh11451 Saudi Arabia Department of Pharmaceutical Biology Faculty of Pharmaceutical Sciences UCSI University Cheras Taman Connaught Kuala Lumpur56000 Malaysia Faculty of Science and Technology Madhyanchal Professional University Ratibad Bhopal462044 India Environmental and Atmospheric Sciences Research Group Scientific Research Center Al-Ayen University Thi-Qar Nasiriyah 64001 Iraq Department of Environmental Energy and Engineering Kyonggi University Yeongtong-Gu Gyeonggi-Do Suwon16227 Korea Republic of Department of Medical Biotechnology and Integrative Physiology Institute of Biotechnology Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences Thandalam Tamil Nadu Chennai602105 India Molecular Biology and Immunobiology Division Interdisciplinary Institute of Indian System of Medicine SRM-IST Tamil Nadu Kattankulathur603203 India

The dehydration of ethanol into diethyl ether over a SO4/SiO2 catalyst was investigated. The SO4/SiO2 catalysts were prepared by the sulfation method using 1, 2, and 3 M of sulfuric acid (SS1, SS2, and SS3) via hydrothermal treatment. This study is focused on the synthesis of a SO4/SiO2 catalyst with high total acidity that can be subsequently utilized to convert ethanol into diethyl ether. The total acidity test revealed that the sulfation process increased the total acidity of SiO2. The SS2 catalyst (with 2 M sulfuric acid) displayed the highest total acidity of 7.77 mmol/g, whereas the SiO2 total acidity was only 0.11 mmol/g. Meanwhile, the SS3 catalyst (with 3 M sulfuric acid) has a lower total acidity of 7.09 mmol/g due to the distribution of sulfate groups on the surface having reached its optimum condition. The crystallinity and structure of the SS2 catalyst were not affected by the hydrothermal treatment or the sulfate process on silica. Furthermore, The SS2 catalyst characteristics in the presence of sulfate lead to a flaky surface in the morphology and non-uniform particle size. In addition, the surface area and pore volume of the SS2 catalyst decreased (482.56–172.26 m2/g) and (0.297–0.253 cc/g), respectively, because of the presence of sulfate on the silica surface. The SS2 catalyst's pore shape information explains the formation of non-uniform pore sizes and shapes. Finally, the activity and selectivity of SO4/SiO2 catalysts in the conversion of ethanol to diethyl ether yielded the highest ethanol conversion of 70.01% and diethyl ether product of 9.05% from the SS2 catalyst (the catalyst with the highest total acidity). Variations in temperature reaction conditions (175–225 °C) show an optimum reaction temperature to produce diethyl ether at 200 °C (11.36%). © 2023 Elsevier Ltd

关键词： Silica

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The growth of local microalgae in synthetic and agricultural wastewater for aquaculture feed application

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AIP Conference Proceedings 2023年第1期2682卷

作者： Jannatulhawa Jasni Nazlina Haiza Mohd Yasin Mohd Sobri Takriff 1Department of Chemical and Process Engineering Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia 43600 UKM Bangi Selangor Malaysia. 2Department of Biological Sciences and Biotechnology Faculty of Science and Technology Universiti Kebangsaan Malaysia 43600 UKM Bangi Selangor Malaysia 3Chemical and Water Desalination Program College of Engineering University of Sharjah United Arab Emirates.

Microalgae's high protein content makes them an attractive feedstock for aquaculture feed applications. However, an economical and effective mass cultivation is essential for greater feasibility in microalgal-based aquaculture applications. Therefore, in this research the utilization of wastewater for microalgal cultivation using two local species of Chlamydomonas sp. UKM6 and Scenedesmus sp. UKM9 were discussed with particular attention to the feasibility of utilizing POME as microalgal growth medium for the production of bulk biomass. The growth rate for Chlamydomonas sp. UKM6 and Scenedesmus sp. UKM9 grown in Bold's Basal Media (BBM) were found higher (0.2829, 0.4045 day-1) than in POME (0.160, 0.255 day-1). Their biomass were then applied as zooplankton enrichment feed for Daphnia magna and then subsequently for feeding fish larvae. The result shown that enriched Daphnia using Scenedesmus sp. UKM9 microalgae promotes better growth, survival and fecundity of fish larvae (P>0.05) than the control diet using dried yeast. Thus, this research indicating the feasibility of culturing microalgae using wastewater as a means to reduce the cost of production is possible and therefore can be applied in aquaculture feed industries.

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