Pretreated fucoidan and alginate from a brown seaweed as a substantial carbon source for promoting biomass, lipid, biochemical constituents and biodiesel quality of Dunaliella salina

Pengaruh Jenis Co-Solvent terhadap Rendemen dan Mutu Biodiesel secara Transesterifikasi In Situ Menggunakan Radiasi Gelombang Mikro

Jurnal Riset Teknologi Industri ◽

10.26578/jrti.v10i2.2563 ◽

2016 ◽

Vol 10 (2) ◽

pp. 119-126

Author(s):

Mahlinda Mahlinda ◽

Fitriana Djafar

Keyword(s):

Catalyst Concentration ◽

Maximum Yield ◽

Acid Value ◽

Experimental Result ◽

In Situ Transesterification ◽

Yield And Quality ◽

Solvent Type ◽

Biodiesel Quality

The main purpose of this research was to observer effect co-solvent type (n-Hexane, chloroform and without co-solvent) toward yield and quality of biodiesel via in situ transesterification process using microwave irradiation. The process was studied at microwave power 450 watt, reaction time 4 minutes, methanol to seed ratio 25:1 and catalyst concentration 5%. The physicochemical parameters of the biodiesel produced such as viscosity, density and acid value were analysed and compared with the SNI 7182-2012 standard. The experimental result showed the maximum yield biodiesel 78,32% obtained by using co-solvent chloroform.Test result of physicochemical properties (viscosity, density and acid value) of biodiesel products using co solvent n-Hexane, chloroform and without co solvent showed that these products conform to the SNI 7182-2012 standars. The type of co-solvent only affectedon biodiesel yield dan not affected on biodiesel quality (viscosity, density and acid value). ABSTRAKTujuan penelitian ini adalah untuk mempelajari pengaruh jenis co-solvent (n-Hexane, chloroform dan tanpa co-solvent) terhadap rendemen dan mutu biodiesel secara trasesterifikasi in situ menggunakan radiasi gelombang mikro. Proses dilakukan pada daya gelombang mikro 450 watt, waktu reaksi 4 menit, perbandingan berat metanol terhadap bahan baku 25:1 dan jumlah katalis 5%. Parameter fisiko kimia dari produk biodiesel seperti viskositas, densitas dan angka asam di analisa dan dibandingkan dengan standar SNI 7182-2012 tentang biodiesel. Hasil penelitian menunjukkan rendemen maksimum biodiesel sebesar 78,32% diperoleh dengan menggunakan co-solvent chloroform. Hasil pengujian karakteristik fisiko kimia (viskositas, densitas dan angka asam) dari produk biodiesel menggunakan co-solvent n-Hexane, chloroform dan tanpa co-solvent menunjukkan bahwa semua parameter ini masih memenuhi standar SNI 1782-2012 tentang biodiesel. Jenis co-solvent hanya berpengaruh pada rendemen biodiesel dan tidak berpengaruh terhadap mutu biodiesel (viskositas, densitas dan bilangan asam).Kata kunci: co-solvent, in situ transesterifikasi, microwave, rendemen, mutu

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The Cooling Rate Effect on Graphene Synthesis Using Low Pressure Chemical Vapor Deposition

Volume 2: Manufacturing Processes; Manufacturing Systems; Nano/Micro/Meso Manufacturing; Quality and Reliability ◽

10.1115/msec2021-64058 ◽

2021 ◽

Author(s):

Byoungdo Lee ◽

Weishen Chu ◽

Wei Li

Keyword(s):

Chemical Vapor Deposition ◽

Reaction Time ◽

Carbon Source ◽

Cooling Rate ◽

Vapor Deposition ◽

Chemical Vapor ◽

Feeding Time ◽

Process Variables ◽

Pressure Chemical

Abstract Low-pressure chemical vapor deposition (LPCVD) is the most efficient method to synthesize large-scale, high-quality graphene for many potential applications such as flexible electronics, solar cells, and separation membranes. The quality of LPCVD is affected by process variables including methane/hydrogen (CH4/H2) ratio, time, pressure, temperature, and cooling rate. The cooling rate has been recognized as one of the most important process variables affecting the amount of carbon source, nucleation, reaction time, and thus the quality of the LPCVD. In this research, we investigate the effect of cooling rate on the quality of graphene synthesize by changing the cooling rate and the gas feeding time. Graphene coverage is measured by Raman mapping. It is found that fast cooling rate leads to decreased carbon source reaction time, which in turn results in higher coverage by monolayer graphene. The temperature-dependent gas feeding time corresponding to different cooling rates can be used to properly supply the carbon source onto the copper surface, also leading to a higher graphene coverage.

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Influence of unconventional feed supplement on productivity and quality of laying hens

Вестник ДВО РАН ◽

10.37102/08697698.2020.212.4.009 ◽

2020 ◽

Author(s):

Л.И. НАУМОВА ◽

А.А. ЛУКАШИНА

Keyword(s):

Laying Hens ◽

Raw Materials ◽

Brown Seaweed ◽

Positive Influence ◽

Feed Conversion ◽

Feed Supplement ◽

Pine Cone ◽

Effective Use ◽

Unconventional Feed

Показана эффективность использования в рационах промышленных кур-несушек натуральных кормовых добавок, изготовленных из сырья растительного происхождения (элеутерококка колючего, морской бурой водоросли, патринии скабеозолистной, крапивы двудомной, муки из шелухи шишек кедрового ореха). Выявлено положительное влияние кормовых добавок на обменные процессы в организме кур, что способствовало повышению их производительных качеств и снижению коэффициента конверсии корма. The results of effective use of the spiny eleuterococcus, brown seaweed, Dahurian patrinia, common nettle, flour from pine cone shell as the feed supplement from raw materials of plant origin in addition to the main ration of industrial laying hens are presented in this publication. The positive influence of the feed supplements on metabolic processes in the hen organisms was discovered and this fact contributed the increase of productive qualities and improvement of feed conversion.

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Dietary Effect of Red Paprika Used to Enhance the Coloration of Red Tilapia (Oreochromis niloticus)

Journal of Aquaculture and Fish Health ◽

10.20473/jafh.v10i1.18397 ◽

2021 ◽

Vol 10 (1) ◽

pp. 25

Author(s):

M. H. Amiruddin ◽

M. F. Norhalis ◽

Sri Sumarwati ◽

Y. Norma-Rashid

Keyword(s):

Oreochromis Niloticus ◽

Crude Protein ◽

Dunaliella Salina ◽

Descriptive Analysis ◽

High Expectations ◽

Red Tilapia ◽

Color Quality ◽

Aquaculture Industry ◽

Bright Color

Red tilapia (Oreochromis niloticus) is one of the famous fish cultures in the aquaculture industry, especially in Malaysia. The appearance of redness makes the fish more attractive for customers to buy. Product appearance is one of the big criteria that customers choose when they buy food. Bright color effects give high expectations for high quality, nutritious, and healthy food. Therefore, to achieve quality products it is necessary to research how to improve the color quality of tilapia as desired by customers. The purpose of this study was to identify the dietary effect of red paprika used to enhance the coloration of red tilapia. This study is an experimental quantitative study. Red tilapia used as an experimental material was obtained from Freshwater Hatchery, University Malaysia Terengganu. A descriptive analysis was used to analyze the data in this study. This study shows that giving red paprika has an effect on the length and weight of red tilapia, where the highest length and weight gained (1.79 cm and 12.37 g) given red paprika 2% and the lowest length and weight gained (0.63 cm and 2.5 g) which given 4% red paprika. The findings of this study found that only 2% of red paprika treatment showed different growth performance. The crude protein, lipid, and moisture composition of tilapia were also higher at 2% red paprika treatment. Meanwhile, the highest composition of ash is feed with 4% red paprika content. The result of this research showed that the caudal and dorsal either muscle or fin showed the highest color at the fish which fed with 8% red paprika. The finding also found that 8% red paprika containing diet feed for six weeks could improve the coloration of the red tilapia. Future studies suggest the use of Dunaliella salina microalgae which is one of the richest sources of carotenoids used as dyes in food.

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Lipid accumulation and biodiesel quality of Chlorella pyrenoidosa under oxidative stress induced by nutrient regimes

Renewable Energy ◽

10.1016/j.renene.2019.05.081 ◽

2019 ◽

Vol 143 ◽

pp. 1782-1790 ◽

Cited By ~ 9

Author(s):

Lei Zhang ◽

Nan Wang ◽

Mei Yang ◽

Ke Ding ◽

Yong-Zhong Wang ◽

...

Keyword(s):

Oxidative Stress ◽

Lipid Accumulation ◽

Chlorella Pyrenoidosa ◽

Biodiesel Quality

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THE EFFECT OF FERMENTATION METHOD, MICROBES INOCULATION AND CARBON SOURCE PROPORTION ON THE QUALITY OF ORGANIC FERTILIZER MADE FROM LIQUID WASTES OF CHICKEN SLAUGHTERHOUSE

Journal of the Indonesian Tropical Animal Agriculture ◽

10.14710/jitaa.38.4.257-263 ◽

2013 ◽

Vol 38 (4) ◽

Cited By ~ 1

Author(s):

Y. Sastro ◽

B. Bakrie ◽

N.R. Sudolar

Keyword(s):

Carbon Source ◽

Organic Fertilizer ◽

Fermentation Method ◽

Liquid Wastes

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Comparison of Capacity for 2,3-Butanediol Production from Corn Cob Hemicelluose Hydrolysate Fermentation by Klebsiella oxytoca HD79 and Klebsiella pneumoniae

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.672-674.147 ◽

2014 ◽

Vol 672-674 ◽

pp. 147-153 ◽

Cited By ~ 1

Author(s):

Jing Ping Ge ◽

Shou Feng Huang ◽

Xing Lin Li ◽

Chao Pan ◽

Wen Xiang Ping

Keyword(s):

Carbon Source ◽

Renewable Resources ◽

Corn Cob ◽

Fermentation Capacity

Production of 2,3-Butanediol (2,3-BD) from renewable resources can be sustainable and inexpensive. Many studies have been done on the fermentation usingKlebsiellapneumoniae,KlebsiellaoxytocaandPaenibacilluspolymyxa. Although significant quantities of 2,3-BD have been accumulated by these bacteria, which one is the best strain of great fermentation capacity still be insensible. In this paper,KlebsiellapneumoniaandKlebsiellaoxytocaHD79 were opt to ferment concentrated and non-detoxified corn cob hemicelluose hydrolysate and concentrated detoxified hydrolysate. Then glucose was utilized as carbon source to verify the quality of the hydrolysate. At last, we compared the fermentation capacity between them. The results showed thatK.pneumoniaehas more resistance with inhibitors thanK.oxytocaHD79,which has showed better ability of producing 2,3-BD.K.pneumoniaemight be a promising strain for 2,3-BD production using renewable resources.

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Influence of Modified Fucoidan and Related Sulfated Oligosaccharides on Hematopoiesis in Cyclophosphamide-Induced Mice

Marine Drugs ◽

10.3390/md16090333 ◽

2018 ◽

Vol 16 (9) ◽

pp. 333 ◽

Cited By ~ 6

Author(s):

Natalia Anisimova ◽

Nadezhda Ustyuzhanina ◽

Maria Bilan ◽

Fedor Donenko ◽

Natalia Ushakova ◽

...

Keyword(s):

Brown Seaweed ◽

Mechanisms Of Action ◽

Adverse Side Effect ◽

Granulocyte Colony Stimulating Factor ◽

Colony Stimulating Factor ◽

Sulfated Oligosaccharides ◽

Blood Neutrophils ◽

The Difference ◽

Stimulating Factor

Immunosuppression derived after cytostatics application in cancer chemotherapy is considered as an adverse side effect that leads to deterioration of quality of life and risk of infectious diseases. A linear sulfated (1→3)-α-l-fucan M-Fuc prepared by chemical modification of a fucoidan isolated from the brown seaweed Chordaria flagelliformis, along with two structurally related synthetic sulfated oligosaccharides, were studied as stimulators of hematopoiesis on a model of cyclophosphamide immunosuppression in mice. Recombinant granulocyte colony-stimulating factor (r G-CSF), which is currently applied in medicine to treat low blood neutrophils, was used as a reference. Polysaccharide M-Fuc and sulfated difucoside DS did not demonstrate significant effect, while sulfated octasaccharide OS showed higher activity than r G-CSF, causing pronounced neutropoiesis stimulation. In addition, production of erythrocytes and platelets was enhanced after the octasaccharide administration. The assessment of populations of cells in blood and bone marrow of mice revealed the difference in mechanisms of action of OS and r G-CSF.

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