At present most human-related products contain a mixture of chemicals for inhibiting microorganisms polluting the environments and harming the users. The purpose of this research was to develop a product using banana and papaya peel extracts as replacers for the chemicals inhibiting microorganisms in heel cream. By extracting raw bananas and papaya peels with coconut oil the studying the efficacy of inhibition on E. coli S. aureus Aspergillus sp. and S. cerevisiae with Disk Diffusion method at the protein concentration were performed as follows: 25 50 100 and 150 micrograms per milliliter. The observation of clear zone to observer clear zone of inhibition. and the Turbidity method using light absorption at a length of 600 nm was also were shown the corresponding results of microbial inhibition. observed and showed the consistent results. Especially the papaya extract having the protein concentration at least of 150 micrograms per milliliter could inhibit all 4 microbe species but could not inhibit S. cerevisiae that indicated a good trend of no harm on human. When mixing the extract in the heel cream it was found that Heel cream containing banana extract papaya and both mixtures displayed the density of 0.9674 0.9103 and 0.8057 gram per cubic meter respectively. They could be stored at room temperature for more than 45 days and still maintained the properties of microbial inhibition by up to 80 percentages. When studying the satisfaction of consumers collected randomly from teenagers to elders at both sexes of 40 people more than 80 percentages of the customers were satisfied with the heel cream from all extracts. These all creams could make the feet soft and moisturized within 1 week. More suggestions were to improve the smell of heel cream products to be suitable for all age of consumers. Therefore this research could be concluded that banana and papaya peel extracts inhibiting microorganisms could be used as a heel cream for further continuously developing at the industrial level.

This research aims to study the relationship between profitability including gross margin operating margin net profit margin Return on Total Assets and Return on Equity and the SET index and dividends. The information is collected from the listed companies on the Market for Alternative Investment (MAI). The data comes from the financial statements and the annual reports of 28 companies with profit with no consecutive loss for more than 3 years and a top-five maximum registered capital of each business category during 2013 – 2017 with the accounting circle starting from 1 January – 31 December of each year. The statistics used for data analysis are descriptive statistical analysis. The secondary data is analyzed in the form of arithmetic mean (Mean) Maximum Minimum and Standard Deviation to describe the characteristics of the Pearsons Correlation Coefficient Sample Analysis. The ratio that represents each group is then analyzed by Multiple Regression Analysis to find the relation with the stock price index and dividends. The results show that profitability including the profit margin Return on Total Assets and Return on Equity has the relationship with stock price index and dividend at 99% confidence level.

This research proposes technical performance evaluation and economic decence for the combination of harmonic correction devices in Industry. Currently an electronic device is popularly applied in power network. Although it is a higher performance device than the existing device it still causes the power quality issues and then network failure. Especially harmonic disturbance in the network it is a harmonic source that generates harmonic current into the network. Many types and solutions are available in the present time therefore the suitable and optimal financial solution must be considered. A network model for the analysis of harmonic correction devices suitable solutions and optimal financial has been established in the simulation software that bases on the power and Break Even Point (BEP) equations. The results of analysis shown that the performance of harmonic correction devices suitable solution and BEP of investment in match to the using of a detuned filter bank and an active harmonic filter (case 8) thus these information will be valued for the end-user.

The objective of this research was to study formulas basic production process and nutrition value and consumer test of frozen Chaya vegetable cream soup. The results indicated that color aroma taste consistency and overall formulas 2 had scored higher than formulas 1 and formulas 3 (p≤0.05). Then formulas 2 was selected for the next step study. Comparison of old frozen Chaya vegetable cream soup formulas 2 and adjusted formulas 2 which according to expert advice by blending from 2 minutes to 4 minutes add unsalted butter add cooking cream and reduced pepper from 5 grams to 3 grams in terms of color aroma taste and overall liking are not different except the texture of the soup. Frozen Chaya vegetable cream soup has moisture 87.60% fat 1.45% crude fiber 1.84% ash 1.07% protein 1.11 % calcium 85.37 mg/kg iron 0.44 mg/kg potassium 128.34 mg/kg and total fiber 1.19 mg/kg. Frozen Chaya vegetable cream soup has light green color and cyanide substance still was 0.1 mg/kg which is safe for the consumer. Comparison of preference score between Frozen Chaya vegetable cream soup and non-frozen found that was no difference (p ≤ 0.05). The consumer test of them are female between 25-35 year old graduated bachelor degree a company employee and income 20001-25000 THB per month consumer from this group are satisfied with high scores for cream soup. The consumer is interested in frozen Chaya vegetable cream soup because this is a new product and price 45 THB is valuable. The consumer would like to have a frozen Chaya vegetable cream soup sole at the supermarket. The cost for the product per 1 cup is 19.07 THB and the sale price is 45 THB.

This research aims to 1) To analyze the situation of logistics and supply chain of healthy ready to eat meals that sold via online. 2) To study a framework of logistics and supply chain development in value added healthy ready meals that sold via online. 3) To practically benefit in making money from online business in the future which Thailand is entering the digital society according to the policy of Thailand 4.0. The researcher has a desire that this study will contribute to supporting the use of digital technology in business for creating alternatives decisions and system management together with the development of the product category. Hence this enables building long-term competitive advantage for entrepreneurs and reduces the complexity from the use of digital technology which plays a role in in Thailands infrastructure and logistics and supply chain management. In this qualitative research the study sample includes seven full-time or parttime entrepreneurs selling healthy ready meals that sold via online in Bangkok and vicinities. Data collection is conducted through interviews. The study found that the locations of six online healthy ready meals sellers are in Bangkok and one in Sumutprakarn. Four sellers provide delivery service in Bangkok and vicinities and three only in Bangkok. Six sellers provide food ordering channel via Line Application five via Facebook three via phone call two via Instagram and one via a specific food ordering application. Three sellers have more than 21 menus while two other sellers have 8-14 and 15-21 menus. There is no seller whose menus are less than 7. Most of the payment methods which six sellers provide are through bank transfer two sellers by cash and two sellers by credit/debit cards respectively. This research can be concluded based on the objectives of this research as follows. 1) Situation of popular online health products. Health-conscious consumers are becoming more interested in food consumption. The suitable calorie intakes are calculated each day and non-toxic ingredients and safe cooking methods are used. It is found that food delivered directly to consumers must have the appropriate supply chain with logistics activity management in order to be consistent with product category and consumers who are of working age that have no time to cook or eat at a restaurant. Some people think it is impossible to cook as their work is too busy. Therefore they decide to order food online for convenience while they can still take care of health. 2) In studying the framework it is important to pay attention to raw materials coordinating with suppliers of raw material method and workspace of the cook delivery to customers customer relationship management and 3) Practical benefits in making money from online business in the future which Thailand is entering the digital society according to the policy of Thailand 4.0. Therefore consumer behavior has changed and it is possible to use technology that is the driving force of the food business the technological development along with logistics management and supply chain management in quality preservation cooking of ingredients transportation and after-sales service. The use of technology can shorten the supply chain because the manufacturer can directly deal with the customer. It can solve the problem or improve the ability of the business directly which will add value and enhance competitiveness. As a result the business will be growing and competitive in the long run. Suggestions for online food entrepreneurs are the risk of miscommunication and careless transportation that ignores customer details which can cause loss of customers despite not the food quality. Therefore entrepreneurs need to manage supply chain quality thoroughly. Moreover the online healthy food entrepreneurs should regularly monitor the quality of raw materials to build credibility so that customers will make the purchase decision once they know the product and then repeat purchase in the future.