This study investigated the effects of partial replacement of wheat flours with Hom Nil rice flour on the physicochemical characteristics antioxidant activities and sensory acceptance of chinese steam bread (Mantou). Mantou was made with wheat flours partially substituted with Hom Nil rice flour at the level of 0% 10% 20% and 30%. Colour parameters (lightness (L*) redness (a*) and yellowness (b*)) of Mantou were measured using a Hunter colorimeter and found that L* andb* values of Mantou decreased while a* value increased with increase in level of Hom Nil rice flour from 0 to 30%. Physical characteristics including hardness springiness and cohesiveness of Mantou were significantly affected with substitution due to the disruption of dough structure. The hardness of Mantou increased with the increasing of the Hom Nil rice flour substitution (0%-30%) in contrast with springiness and cohesiveness. The total phenolic/anthocyanin contents and antioxidant activities (DPPH FRAP and ABTS) of Mantou increased with increasing Hom Nil rice flour level up to 30%. These results suggested that the substitution of 20 % Hom Nil rice flour would produce healthy and acceptable Mantou with higher total phenolic/anthocyanin contents and antioxidant activities.

This research aims to develop the new product from a northern local fermented soy bean which were seasoning powder and furikake-rice seasoning and analyze to observe the nutritional chemical component and antioxidant of the products. The fermented soy bean was dried using hot air oven to achieve a required moisture content prior to apply to the new product. The best ratio of the dried fermented soybean powder was of 35%. The sensory test was used to evaluate the customer acceptance in these developed products. The results showed that the panelist moderately like the products with the overall acceptable score of 7 . 8 5±0 . 3 6 for the seasoning powder and 7 . 4 6±0 . 6 7 and 7 . 4 4±1 . 0 1 for furikake-rice seasoning in sesame-seaweed and garlic flavors respectively. The analysis of the nutritional values (protein fat and antioxidant) of the product were analyzed. The result showed that the seasoning powder has the highest values of nutritional values which were 43.80% 19.24% and 3.72 μmol TE/g for protein fat and antioxidant respectively. The furikake-rice seasoning sesame-seaweed have the values of protein fat and antioxidant of 2 9 . 9 0 %9.72% and 1.79 μmol TE/g respectively. The garlic flavor has the values of protein fat and antioxidant of 31.70% 20.51% 1.96 μmol TE/g respectively. The developed product would be continuously produced in a commercial product for the local community since the fermented soybean products have high amount of nutrition especially the protein content.

The development product of dried pickled passion fruit peel aimed to study appropriate production process of dried pickled passion fruit peel to study the preservation and examine the acceptance from the customers. The result showed that the appropriate way to produce dried pickled passion fruit peel was the 30% 40% and 50% of intensity in syrup. With the intensity of syrup started from 30% the appearance color and smell of final product got highest average score. Therefore the production should be slow pickled with 30% of syrup intensity. In terms of preservation there was no microorganism over Thai industrial standard institute of fruits and vegetables 161/2015. Finally most of the customers accepted this product

The purposes of this research were: 1) to study the personal factors of consumers for choosing local restaurants in Phuket Province 2) to study the consumption factors of local restaurants in Phuket Province 3) to study the factors of marketing mix in the local restaurants in Phuket Province 4) to compare the level of importance of the marketing mix factors in the local restaurants in Phuket Province classified by personal factors of respondents 5)to compare the level of importance of the marketing mix factors in the consumers use of local restaurants in Phuket Province classified according to the use of local restaurants and 6) to present guidelines for local restaurant development in Phuket Province. A sample group of 400 people and local restaurant operators in Phuket has 16 cases. The research instruments are questionnaires and interviews. The statistical techniques used for data analysis were frequency percentage mean standard deviation one-way analysis of variance and analysis of descriptive data. The research found that: 1) most consumers were female aged 36-40 years with a bachelors degree being a private company employee with an estimated income of 10001–20000 baht and they resided in Phuket. 2) As for the reasons of choosing to use local restaurants it was found that most of the consumers chose to consume local food because of their unique identity and difference from conventional food. The most common food consumed was Hokkien fried noodles. The main course and side dishes commonly being consumed was Stir Fried Liang Bai with Shrimp Roe and a popular savory snack was Hu Shae sweet snacks were using Gosui and a popular dessert was Oh Aew. Most people consumed local food once a month and was paying approximately 901- 1300 baht for each meal. 3) Consumers valued the overall marketing mix at a high level. The determinants were in descending order local food price construction personnel and physical presentation and distribution service marketing promotion. 4) Comparing the level of importance of the marketing mix factors in consumers’ selection of local restaurants in Phuket Province found that gender age education level occupation monthly average income and different residences put importance on the factors of marketing mix with no difference except the gender was not different with statistical significance at the .05. 5) Comparing the level of importance of the marketing mix factors in consumers’ selection of local restaurants in Phuket Province found that the reasons for consuming local food popular types of local food popular local food items frequency of local food consumption and the cost of consumption per time were different. Paying attention to the factors of marketing mix there was no statistically significant difference at the .05 level. And 6) guidelines for local restaurant development in Phuket Province were to select raw materials directly from the producer sources in order to maintain freshness and quality. In addition a standard price threshold should be set and suitable for the quality of local food and so do distribution channels. There could be an online order and advertising through various media such as websites or other media in order to disseminate customers to know more about restaurants. In addition there should be a focus on training employees to recognize the importance of service and on educating employees about service skills. At the same time the restaurants should be designed to be unique easy to remember and technology should be adopted for example in the matter of receiving food orders to achieve accuracy speed and error prevention.

งานวิจัยนี้ มีวัตถุประสงค์เพื่อศึกษาอัตราส่วนซูคราโลสทดแทนน้ำตาลทรายในการผลิตผลิตภัณฑ์ น้ำหวานเข้มข้นจากกระเจี๊ยบแดง ศึกษาปริมาณสารสกัดไคโตซานที่เหมาะสมในการยืดอายุการเก็บรักษา ผลิตภัณฑ์น้ำหวานเข้มข้นจากกระเจี๊ยบแดง และศึกษาการยอมรับของผู้บริโภคที่มีต่อการใช้สารสกัด ไคโตซานในการยืดอายุการเก็บรักษาผลิตภัณฑ์น้ำหวานเข้มข้นจากกระเจี๊ยบแดง จากผลการประเมิน คุณภาพทางประสาทสัมผัสผู้ทดสอบชิม 50 คน พบว่า อัตราส่วนซูคราโลสทดแทนน้ำตาลทราย ที่ อัตราส่วน 100 : 0 ผู้ทดสอบให้คะแนนทดสอบชิมคะแนนความชอบเฉลี่ยสูงสุดในด้านกลิ่นรส รสชาติ และ ความชอบโดยรวม เฉลี่ยอยู่ในระดับชอบปานกลาง ค่าความเป็นกรด-ด่าง (pH) มีค่าเท่ากับ 3.00±0.01 และปริมาณแอนโทไซยานิน มีค่าเท่ากับ 0.60±0.02 ศึกษาปริมาณสารสกัดไคโคซานที่เหมาะสมในการยืด อายุน้ำหวานเข้มข้นจากกระเจี๊ยบแดง พบว่าสารสกัดไคโตซาน 0.09% ของปริมาณส่วนผสมทั้งหมด สามารถเก็บรักษาได้เป็นเวลานาน 3 สัปดาห์ โดยมีจำนวนจุลินทรีย์ทั้งหมด และจำนวนยีสต์ รา ไม่เกินตาม มาตรฐานผลิตภัณฑ์ชุมชน และกรมวิทยาศาสตร์การแพทย์กำหนด ศึกษาผลการยอมรับของผู้บริโภคที่มีต่อ การใช้สารสกัดไคโตซานในการยืดอายุการเก็บรักษาผลิตภัณฑ์น้ำหวานเข้มข้นจากกระเจี๊ยบแดง ผู้บริโภค ให้การยอมรับผลิตภัณฑ์น้ำหวานเข้มข้นจากกระเจี๊ยบแดงโดยใช้สารให้ความหวานจากหญ้าหวานกับ ซูคราโลสโดยใช้สารสกัดไคโตซานจากเปลืองกุ้งในการยืดอายุการเก็บรักษา 99% และสนใจซื้อผลิตภัณฑ์ 59%