An ability of fresh banana peel without surface modification was evaluated for the removal of lead ions from aqueous solution. Batch adsorption was performed at room temperature. The experimental conditions including dosage contact time initial concentration of lead( II) ion were studied. The characterization of fresh banana peel was carried out by Fourier-transform infrared spectroscopy (FTIR) and energy dispersive X-ray fluorescence ( ED-XRF) . The isotherm models of Langmuir and Freundlich were used to describe the adsorption mechanism involving the relationship between adsorbent surface capacity and adsorbed degree of lead(II)ion in the equilibrium conditions. The experimental data fitted well to the Langmuir isotherm with a correlation coefficient of r2 greater than 0.86. The Maximum adsorption capacity (qm) was found to be 0.9151 mg/g. The results of ED-XRF of fresh banana peels before and after treatment with lead( II) ion confirmed that lead( II) ion was occupied onto the surface of fresh banana peel. Moreover the inside of fresh banana peels was found the lead(II)ion larger than the outside peels. It was concluded that waste of banana could be used as a low-cost adsorbent for removal of lead(II)ion from aqueous solution based on a simple adsorption method.

Purpose of this Using dried bananas to replace in Kanom Thong Muan the objective is to study the basic formula for Kanom Thong Muan in 3 formula and to study Using dried bananas to replace in Kanom Thong Muan were basic formula replace 20% 40% and60% By planning randomized complete block design (RCBD) and evaluating sensory quality in appearance (thin consistent) color odor taste texture (crumbly) and overall preference with the use of tasting methods for 9-Point Hedonic Scale. The study the basic formula for Kanom Thong Muan By allowing 40 tasters and the study this Using dried bananas to replace in Kanom Thong Muan By allowing 80 tasters to be undergraduates in foods and nutrition Faculty of Home Economics Technology Rajamangala University of Technology Phranakhon. Take average data (Mean) analyze variance (Analysis of Variance ANOVA) and compare different mean values (Duncan’s New Multiple Test DMRT) The results of the 3 basic formulas of Kanom Thong Muan namely formula 1 formula 2 formula 3 found that the tasting person accepted the formula 1 in appearance (thin consistent) color odor taste texture (crumbly) and overall preference. Average 8.20 7.90 7.85 8.05 8.30 and 8.15 respectively when analyzed Variance and comparison of differences found that appearance (thin consistent) color odor taste texture (crumbly) and overall preference There are significant differences at the level of 0.05. The results of the study of the amount of dried bananas that replaced sugar in 4 formula found that the tasting person accepted the formula replace 20% in appearance (thin consistent) color odor taste texture (crumbly) and overall preference average of 8.09 8.00 7.80 7.83 8.09 and 8.00 respectively when analyzed (3) Variance and comparison of statistical differences found that appearance (thin consistent) color odor taste texture (crumbly) and overall preference There are significant differences at the level of 0.05.

The purposes of this research were to study 1) the personal factors of small entrepreneurs who decide to buy instant banana fritters batter mix in Chiang Mai province 2) the production factors of small entrepreneurs who decide to buy instant banana fritters batter mix in Chiang Mai province 3) the purchasing decision on instant banana fritters batter mix of small entrepreneurs in Chiang Mai province 4) the relationship between personal factors and the small entrepreneurs’ purchasing decisions on banana fritters batter mix and 5) the relationship between production factors and the small entrepreneurs’ purchasing decisions on banana fritters batter mix in Chiang Mai province. The population of the study included 328 small entrepreneurs 265 participants were selected by a specific selection method. The instruments used in this study were questionnaires. The statistics used for data analysis were frequency percentage and chi-square. The results of the study were as follow: 1) personal factors of the small entrepreneurs most of them living in Mueng district Chiang Mai mostly female aged between 31 to 40 years. Their educational background was below the bachelors degree. The average monthly sales revenue ranged from 5001 to 10000 baht sales volume of fried bananas was 10– 20 bunches per day the location of the shop was in front of the house. 2) Factors of production it was found that small entrepreneurs placed high importance on personnel budget raw materials and management. 3) The small entrepreneurs purchasing decisions on banana fritters batter mix found that small entrepreneurs decided to buy “Kueakun brand”. The reason for the purchase was delicious taste. The outstanding feature of instant banana fritters batter mix was that the fried bananas were crispy for a long time. The place of purchase was the market/retail store. The amount purchased was 10 – 20 kg/time. The purchase cost was 1000 – 2000 baht/time. The purchase frequency was 1 - 2 weeks/time. The ingredient that needed to be added was dried shredded coconut and the desired scent was no need to add flavorings. 4) The relationship between personal factors and the small entrepreneurs purchasing decisions on banana fritters batter mix the results showed that personal factors in terms of gender age education level average sales income per month and sales volume per day there was a statistically significant correlation with the outstanding feature of instant banana fritters batter mix at .05 level. 5) The relationship between the production factors and the purchasing decision on the instant banana fritters batter mix of the small entrepreneurs found that the production factors in terms of personnel raw materials and the management aspect had a statistically significant correlation at the .05 level.

The purpose of this research is to develop a hot air dryer using waste heat from a200 liter kiln for drying bananas and to investigate its drying performance. The main parts of the dryer consist of the drying chamber that has dimensions 0.71x0.83x.091 m3 the air circulation system and a heat exchanger which receives waste heat from the exhaust tube and kiln surface. The dryer was developed by designing a drying chamber on the top of a 200 liter kiln to reduce heat lost in the structure and an exhaust gas heat exchanger was developed using groups of copper tubes for increasing then heat transferred to the air. The drying performances were analyzed by measuring specific drying rates and specific energy consumption. Experiments were performed under different temperatures of 60 70 and 80℃ And at a constant velocity of 1.8 ms-1. Eucalyptus was selected as the heat source. Thirty kg of peeled bananas were prepared at an initial moisture content of 241.19±31.50% dry basis and were dried until to final moisture content of 48.47±10.46% dry basis. All experiments were carried out in duplicate. For temperatures of 60 70 and 80 ℃ the ave age specific drying rates were 0.085±0.0004 0.114±0.0009 and 0.1277±0.010 kg water h-1kesolid-1 and the average specific energy consumptions were 1.42±0.055 1.21±0.355 and 1.04±0.074 MJ/kg water respectively. Some dried bananas had burned at a temperature of 80℃ so at temperature of 70 ℃ was the optimal condition in this experiment. This produced good color a high specific drying rate and low specific energy consumption.

This research aimed to investigate the basic recipe product the quantity of banana flour that used instead wheat flour in Thai crispy sponge cake (Sa Lee Krob) and the nutrition value of Sa Lee Krob. 50 samples were expert lecturers from the department of food and nutrition the department of food science and nutrition and the department of industrial food service the faculty of Home Economics Technology Rajamangala University of Technology Phra Nakhon. 9- point hedonic scale was used in this study. The result found that the basic of 3th recipe (Bloggang 2018) was acceptable as the standard recipe. There were 4 levels of the substitution of banana flour for wheat flour; 0% 10% 20 % and 30%. 10% was acceptable for the appearance color flavor taste texture and overall liking. The average scores were 7.94 7.92 8.22ม 7.90 and 8.08 respectively. For the color of the basic Sa Lee Krob L* (brightness value) a* (redness value) and b* (yellow value) were different from Sa Lee Krob which is substituted with banana flour (p≤0.05) For the texture of basic recipe of Sa Lee Krob the hardness value was harder than Sa Lee Krob which was substituted with banana flour. The flexibility value ability to combine stickiness value and Chewing resistance value were not significantly different (p>0.05). The nutritional aspects of the basic Sa Lee Krob and the quantity of banana flour substituted wheat flour found that provided less energy but more fiber. The more ash showed that banana flour provided more quantity minerals. Minerals found in banana include potassium magnesium phosphorus and calcium.