The purposes of this research were 1) to study the personal factors of Mahachai Market customers 2) to study coconut sugar buying behavior of Mahachai Market customers 3) to study the factors of marketing mix associated with coconut sugar buying behavior of Mahachai Market customers 4) to study the relationship between personal factors and coconut sugar buying behavior of Mahachai Market customers 5) to study the relationship between marketing mix and coconut sugar buying behavior of Mahachai Market customers The population was 200 coconut sugar buyers in Mahachai Market. The research instrument and to collect data was questionnaire. The statistics used to analyze the data were frequency percentage mean standard deviation and Pearson chi-square. The data were analyzed by SPSS. The research found that 1) the most Mahachai Market customers were female age range in 35 - 45 years monthly income was in a range of 25001 – 35000 Baths and lived in the central region. 2) coconut sugar buying behavior of Mahachai Market customers found that reason to buy was for family consumption the an average quantity bought was 1-5 kgs cost of buying was 101 - 300 Bahts the frequency of buying is one time per month coconut sugar was bought in small cups and one who influenced decision was oneself. 3) marketing mix associated with coconut sugar buying behavior of Mahachai Market customers found consumers has high level satisfaction and when considered each aspect the highest level satisfaction was price and product high level satisfaction was place and the moderate level satisfaction was promotion. 4) relationship between personal factors and coconut sugar buying Behavior of Mahachai Market customers were positive in gender age income and place of living at statistically significance of .05 level and 5) relationship between marketing mix and coconut sugar buying Behavior of Mahachai Market customers were positive in place and promotion at statistically significance of .05 level.

This research aims to develop the coconut coir and fiber indoor acoustic and thermal insulation boards mixed with natural latex. The 5 ratios of coconut coir: coconut fiber: natural rubber were equal to 0.1: 0.9: 0.1 0.1: 0.9: 0.15 0.1: 0.9: 0.2 0.1: 0.9: 0.25 and 0.1: 0.9: 0.3 by weight. The indoor acoustic and thermal insulation boards were produced by knitting the coconut coir and fiber spraying the natural latex and heat compressing. The properties testing of indoor acoustic and thermal insulation boards included the density test water absorption test tensile strength test thermal conductivity test sound protection efficiency test and real usage test. From the results 0.1: 0.9: 0.15 ratio is the most suitable ratio of coconut coir and fiber indoor acoustic and thermal insulation board mixed with natural latex. The natural latex which putted in these indoor acoustic and thermal insulation boards can reduce the water absorption and increase tensile strength and sound protection efficiency.

This research aims to develop the coconut coir ceiling board mixed with natural latex. The 6 ratios of gypsum plaster: coconut coir: sodium silicate: natural rubber: tap water are equal to 1: 0.15: 0.03: 0.00: 1 1: 0.15: 0.03: 0.01: 1 1: 0.15: 0.03: 0.02: 1 1: 0.15: 0.03: 0.03: 1 1: 0.15: 0.03: 0.04: 1 and 1: 0.15: 0.03: 0.05: 1 by weight. The ceiling boards were produced by casting in normal temperature (30 – 35 degree of Celsius). The properties testing of coconut coir ceiling board mixed with natural latex followed the TIS 219-2009 standard (gypsum plasterboard) including: breaking load nail pull resistance deflection water absorption density thermal conductivity coefficient and real usage. From the results 1: 0.15: 0.03: 0.03: 1 ratio is the most suitable ratio of coconut coir ceiling board mixed with natural latex. This developed ceiling boards can reduce the quantity of coconut coir waste and get the good thermal insulation ceiling board products.

The objectives of this research are to study the product development of light weight concrete wall board mixed with coconut leaf waste for small community enterprise to find the suitable coconut leaf waste mixed ratio with cement river sand coconut leaf waste water and catalyst accelerator at 1:0.4:0.13:0.33:0.03 ratio. CC13 (1:0.13) at 28 days has density 2266 kg/m3 bending resistance 3.05 MPa heat conduction efficiency 0.236 W/m-K. The coconut leaf waste can absorb water inside and the cement board can attach to the concrete wall easily. Suitability to make the big concrete wall.

Durian has been very popular not only local people but also tourists. As a result there are many durian peels wasted so this research is explored the utilization of durian peels. Durian rind is a biological waste but contains high amount of crude fiber. This research aims to study using durian rind powder to replace wheat flour in butter cakes at 5 10 and 15 % (w/w) (DRB-5 DRB-10 and DRB-15). Physical properties chemical composition and sensory evaluation of the butter cakes were analyzed. The results showed that durian rind powder contained 51.43 % of crude fiber. Increasing of durian rind powder in butter cakes showed significant decreasing of lightness (L*) blue–yellow component (b*) springiness and cohesiveness values while green–red component (a*) hardness and gumminess values were significantly higher than the control sample (BC) (p≤0.05). Dietary fiber content of the products shown significantly increased by 13.98% for DRB-5 48.92 % for DRB-10 and 54.84% for DRB-15 as compared with BC (p≤0.05). The acceptance scores of DRB-5 including appearance odor taste texture and overall liking scores were highest. There are 300.28 kcal for 1 serving of butter cake which contain 1.70 gram of dietary fiber. However durian rind powder can be used as a food ingredient and source of dietary fiber in other food recipes for further studies.