จำนวน Repository ( 83 )

ความหลากหลายของจุลินทรีย์ดินในแปลงหม่อนที่เกิดโรครากเน่าและการตรวจหาเชื้อสาเหตุโรคโดยใช้ไพรเมอร์จำเพาะ
ความหลากหลายของจุลินทรีย์ดินในแปลงหม่อนที่เกิดโรครากเน่าและการตรวจหาเชื้อสาเหตุโรคโดยใช้ไพรเมอร์จำเพาะ

The diversity of soil microorganisms in mulberry root rot disease infesting fields was investigated from The Queen Sirikit Sericulture Center at Kanchanaburi Khon Kaen Sisaket and Ubon Ratchathani provinces. Isolation of the soil microorganisms was performed on four media as nutrient agar (NA) potato dextrose agar (PDA) rose bengal agar (RBG) and modified selective fusarium agar (SFA). Twenty-four bacterial isolates were arisen from NA including gram positive endospore forming rod gram negative rod gram positive cocci and Actinomycetes. Similarly 75 isolates of fungi were gained from PDA RBG and SFA and could be defined to be Aspergillus sp. Chaetomium sp. Curvularia sp. Fusarium sp. Penicillium sp. Phytophthora sp. and Rhizopus sp. by their morphological characteristics. Verification of the causal pathogen of mulberry root rot disease could be accomplished using specific primers for F. solani in which a DNA band at approximately 300 bp was revealed.

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การพัฒนากระดาษจากเส้นใยทะลายปาล์มน้ำมันเปลือกหุ้มผลปาล์มน้ำมันและเปลือกปอสา และสารเคลือบไคโตซาน
การพัฒนากระดาษจากเส้นใยทะลายปาล์มน้ำมันเปลือกหุ้มผลปาล์มน้ำมันและเปลือกปอสา และสารเคลือบไคโตซาน

This research aimed to develop paper from oil palm empty fruit bunch (Fb) oil palm mesocarp (M) and paper mulberry (P) with chitosan coating to be used as single-use paper bag for dry food products. The optimal pulp preparation conditions for Fb M and P fibers were boiling in 25 25 and 15% NaOH solution at 170 170 and 100°C for 3 hours respectively. The optimal H2O2 concentrations for bleaching of Fb M and P pulps were 40% 40% and 0.2% respectively. The obtained pulps were used to prepare papers with the basis weight of 109 g/m2 . The papers consisted of Fb M and P pulps at ratios of 70:0:30 (FbP) 0:70:30 (MP) and 35:35:30 (FbMP). It was found that FbP paper showed superior physical and/or mechanical characteristics than those of MP and FbMP. FbP papers were then coated with chitosan solutions (0.2-0.6%) to further improve their mechanical properties and reduce their water absorption characteristics. The optimal concentration of chitosan was 0.4%. This study showed that all three types of pulps could be used to produce papers that had equal or superior mechanical- and water adsorption properties as compared to those of commercially available paper bags made from wood pulp.

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การลดการดูดซับน้ำมันในผลิตภัณฑ์แห้วทอดด้วยเทคโนโลยีสนามไฟฟ้า
การลดการดูดซับน้ำมันในผลิตภัณฑ์แห้วทอดด้วยเทคโนโลยีสนามไฟฟ้า

This research is studying of an electric field combine with a frying process in a Chinese water chestnut product for reducing oil absorb. An electric field that is used in an experiment will have a stress from 1-3 kV/cm. This will be generated by using a direct current high Voltage from 1066 to 3200 V. which is distributed to an electrode in an uniform and non-uniform of an electric field. This will have a dielectric barrier discharge. There is an analysis for finding a relationship of a moisture on absorbing oil of a Chinese water chestnut fried product due to a moisture has an effect on absorbing oil directly. From an experimental result this is found that the best electric field stress which will have an effect on reducing a moisture of a Chinese water chestnut is an non-uniform electric field form that is created from a direct current high voltage at 3200 V. and this will have an electric field stress at 3 kV/cm. This will have an average of a difference of a moisture at 0.6 g. This will select to use a direct current non-uniform electric field at 3 kV/cm. In an experiment combine with a fried process in a Chinese water chestnuts fried product this is done for reducing of absorbing oil. By this will fry at the temperature of 180๐C for 5 minutes. This is found that this can reduce an absorbing of oil best at 17.93% when this has compared to a Chinese water chestnuts fried that hasn’t passed an electric field.

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การประเมินประสิทธิภาพการใช้งานห้องน้ำของคนพิการทางการมองเห็นเพื่อสร้างเกณฑ์ในการออกแบบ
การประเมินประสิทธิภาพการใช้งานห้องน้ำของคนพิการทางการมองเห็นเพื่อสร้างเกณฑ์ในการออกแบบ

This research aims to evaluate performance ease of use and security of designer bathroom for People with Visual Impairment. To establish criteria for designing bathrooms for people with visual impairment convenient and secure. The testing of bathroom designed for People with Visual Impairment in the ease of use and safety. From a sample of 30 people from evaluating the performance of People with Visual Impairment bathroom. To establish design criteria have been concluded. Orientation access various functions within the toilet should be placed in a triangular pattern. The size of the space available in each section should have a width close to reaching both the left and right or 1:00 to 1:20 meters approximately which led to the creation of the navigation functions. The surface should look different. But both have the same floor area. Case in point empirically for various functions. Use a light spot Or wall colors yellow orange To those who have blurred vision. Use more convenient The height of the counter should not be less than 0.80 meters so that disabled people have to stoop so dangerous. Detailed breakdown of wet and dry areas. The slope should be greater than the lower level. Or the waterproof (CURB) distance from the gate to reach the final (toilet) should be approximately 2:00 to 2:40 meters that should enhance security by using the cushioning material at the wall. Edge counters And bidets The research was to evaluate the efficiency of People with Visual Impairment bathroom. To establish design criteria To be appropriate And safe to use From designing a bathroom for People with Visual Impairment. The result is a conclusion from the test sample only preliminary. The need for additional testing of water and three forms or compare with typical bathroom. From a diverse group of users to have a complete research results and to determine the design criteria occur.

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การพัฒนาผลิตภัณฑ์ข้าวสังข์หยดพองไร้น้ำมันผสมเมล็ดพืช
การพัฒนาผลิตภัณฑ์ข้าวสังข์หยดพองไร้น้ำมันผสมเมล็ดพืช

This research had the following objectives: 1) To compare roasted and fried Sangyod rice grain products. 2) To find proper proportion of puffed Sangyod rice grains to other seeds. 3) To find storage life of puffed Sangyod rice grains mixed with other seeds product. 4) To calculate cost of production of oil free puffed Sangyod rice grains mixed with other seeds product. Results found that physical properties of roasted Sangyod rice grains puffed and expand better than the fried ones. Consumers preferred the roasted grains to the fried oned because less oil was consumed which was good for health. In developing puffed Sangyod rice grain product Consumers accepted the second formular of 50:50 proportion of puffed Sangyod rice grains to other seeds better than the other proportion of 30:70 and 70:30. The results were statistically significant. This formular was used in storage life study. Results found that the product can be kept 7 days at ordinary room temperature Microbial growth was observed every two days. Mold and yeast counts and water activity were studied. No mold nor yeast were found in day 0 water ativity was 0.58. No mold nor yeast were found for 7 days. Cost of production of puffed Sangyod rice grain mixed with other seeds product was calculated. The material cost was 95 Bahts. 30% processing codt was 29 Bahts for 50 pieces of product. The average cost per piece was 2.10 Bahts.

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