จำนวน Repository ( 8 )

การพัฒนาผลิตภัณฑ์จากขมิ้นเพื่อวิสาหกิจชุมชนหมู่บ้านแก่งประลอม อำเภอ ไทรโยค จังหวัด กาญจนบุรี
การพัฒนาผลิตภัณฑ์จากขมิ้นเพื่อวิสาหกิจชุมชนหมู่บ้านแก่งประลอม อำเภอ ไทรโยค จังหวัด กาญจนบุรี

Most inhabitants of Kaeng Pra Lom village Sai York Kanchanaburi province are royal through project of Princess Maha Chakri Sirindhom Rattanaraj Suda have an occupation of agriculture especially cassava com banana turmeric and other. Unfortunately a lot of some part of turmeric will be waste. As the result of only of turmeric will be waste. As the results of only some part of turmeric can be used and a lot of other will be destroyed. The objectives of this research are study of the properties of the fiber from turmeric waste design an Eco Designproduct transfer of technology to produce a prototype community and prepare a business plan. The fiber of turmeric stem was separated by soaking with solution of sodium hydroxide and economic fiber will be modifYing by using high performance machine to create an Eco Designproducts home decorate or using as a material for a factory.

2556
A novel method for measuring total antioxidant capacity and its application to monitoring the antioxidant status in Thai herbs.
A novel method for measuring total antioxidant capacity and its application to monitoring the antioxidant status in Thai herbs.

A novel and simple method for measuring total antioxidant capacity or T AC in Thai herb extracts has been developed. The principle is based on generating free radical the deep blue Imipramine radical is generated by oxidizing Imipramine by ammonium tetravanadate in acid medium that can be easily scavenged by antioxidant compounds in the sample. Decreasing in the absorption spectrum at 620 nm related with antioxidant capacity was detected by spectrophotometer method in the proposed of practicable and low-cost However improvement of the throughput Flow injection analysis (FIA) was applied. The variables affecting the signal such as pH reagent concentrations linear relationship was optimized. The novel assay is linear up to 2800 mg Trolox equivalent/L its precision value is lower than 1% RSD and these are no interference from NaOH NaCI and N~C03 The method was applied for determination of three extract fractions of G. sootepensis. The results show the different of antioxidant capacity in each fraction with S I has the most TAC following S2 and S3 respectively. Although a good correlation of the present method was observed between two methods DPPH and Follin Ciocalteu reagent Finally the developed method was easy stable inexpensive environmental friendly and automated measures total antioxidant capacity.

2555
A novel spectrophotometric method for determination of melamine
A novel spectrophotometric method for determination of melamine

The aim of this research was to develop a novel convenient low cost environmental friendly and simply method for determination of melamine in milk samples. The chemical reaction of this method was based on the complexation of melamine aldehyde and ketone called Mannich reaction. The absorption of the product complex was recorded by spectrophotometric technique at 236 nm. The method validation was good with linear range of 0.1-2.5 ppm and the limit of detection (LOD) was 0.08 ppm. The method revealed precision with %RSD values no greater than 5%. To quantitY the amount of melamine in raw milk standard addition was applied with recoveries in a range from 76-91 %.

2555