The study aimed to investigate appropriate formula for drinking yoghurt production. The conditions were ratio of yoghurt : concentrated rambutan juice at 100 : 0 90 : 10 85: 20 and 75: 25 the effect of concentrated rambutan juice on physical and chemical and microbiological lactic acid bacteria survival appropriate proportion of syrup and lactic acid bacteria survival during storage of drinking yoghurt from rambutan juice. It was found that proportion of concentrated rambutan juice had no effect in color (L* a*) of the yoghurt (p>0.05) but its impact to b* and viscosity were significant (p≤0.05) they increased with the increased proportion of the concentrated rambutan juice. Yoghurt with 15% concentrated rambutan juice had 88% survival rate of lactic acid bacteria after stimulated digestive system. The results showed that optimal production formula of drinking yoghurt from concentrated rambutan juice and syrup were 90:10 Z(yoghurt: concentrated rambutan juice; 85:15) : syrup) Drinking yoghurt stored in the refrigerator at 4±1oC for 15 day was evaluated and found that LAB survival numbers were 9.90 log CFU/mL.

The use of yogurt and inulin in soybean of salad dressing products had steps to develop as follows 1) Selection of salad dressing products basic formula and physical and chemical test. 2) Developing soybean of salad dressing products by crushed soybeans were used instead of whole eggs and used olive oil instead of vegetable oil. The sensory evaluation was done by means of scoring method which was 9-point Hedonic Scale Test. 3) Using the developed soybean salad dressing in 2) to develop it to soybean mixed yogurt salad dressing by putting yogurt for 5 10 and 15 of formula then study the acceptance by sensory tests. 4) Putting inulin into soybean mixed yogurt salad dressing for 5 10 and 15 of formula then did sensory test It was found that consumers rated the most common sensory attributes was soybean mixed yogurt with inulin salad dressing third formula which was mixed by 15% of yogurt and inulin and found that developed soybean salad dressing had low energy without separation of water and fat the surface is glossy cream. The texture of soybean salad dressing formula was smooth there were bubbles in the salad dressing soy sauce and a mellow taste. Soybean salad dressing had thick texture and aroma. This soy formula had a lot of fiber. This was due to the use of soy substituted for yolks and the use of inulin to replace oil that results to have dietary fiber which helped in the digestive system and is low in fat. In addition the use of inulin also made soybean salad dressing was homogeneous did not separate the layer of water with fat. And adding yogurt with lactic acid bacteria helped digestion and stimulated white blood cells to help prevent the growth of harmful bacteria. It also made strengthens of the immune system.

The development of Karanda Sundae-style set yogurt has the objectives to develop a formula for making Karanda yogurt and as a guide to the use of Karanda. To study the base formula of set yogurt and study amount of Karanda jam that is suitable for making Sundae-style yogurt and study the quality changing during yogurt storage at cold temperature (4ºC). From the results of the selection of basic formulas for set yogurt. It was found that the panelists liked yogurt which was prepared from 82 % pasteurized milk 9% skimmed milk powder 4.5% sugar and 4.5% plain yogurt. Next this selected yogurt recipe was developed to be a product of sundae-style set yogurt with Karanda jam. From sensory testing Karanda jam (65% Total soluble solids) at 15% of the total yogurt ingredients received a preference score of more than 10% and 20%. Karanda Sundae-style set yogurt has protein fat carbohydrate and fiber content 7.17 1.56 67.94 and 1.60% respectively. When stored at 4 ºC for 18 days Karanda Sundae-style set yogurt still maintains the good characteristics of set yogurt found a syneresis of whey and surface of the yogurt is slightly dry. The yogurt has a pH at 3.65 with a lactic acid content of 0.92% the amount of anthocyanin has changed slightly. And microbial quality still has the number of lactic acid bacteria in accordance with the standard criteria of the type of yogurt that still contains live microorganisms

The purposes of this research were to study the suitable volume of Jerusalem artichoke flour for stirred low-fat yoghurt production and to study their shelf life. A different level (0.00 1.80 and 3.60 % w/w skim milk) of Jerusalem artichoke flour was added to yoghurt milk. Samples of different treatments were analyzed for their pH titratable acidity viscosity total soluble solid total solid syneresis and 9 – point hedonic scale sensory test (color flavor taste texture and overall acceptability). It is found that stirred low-fat yoghurt with 3.60 % Jerusalem artichoke flour was the most suitable formula for stirred low-fat yoghurt production because its viscosity was similar to the commercial yoghurt and based on sensory test the optimum of 3.60 % Jerusalem artichoke flour in the yoghurt was ideal. Tester accepted yoghurt product in term of color and flavor as like very much and taste texture and overall acceptability as like moderately. Stirred low-fat yoghurt with 3.60 % Jerusalem artichoke flour maintained pH and microbiological qualities when stored at 10๐C for 15 days. The total count of lactic acid bacteria in the stirred low-fat yoghurt with 3.60 % Jerusalem artichoke flour was 7.87 log CFU/g (21 days).

Ice cream is a kind of sweets that is popular worldwide. For years ice cream has been continuously developed to meet various consumer satisfactions. Nowadays people are more concerning about health. Ice-cream is then added with some herb into ingredients to build more nutrition and to be healthy. Aloe Vera is a plant full of water containment. It also heals wound of fire hot water scalds persistent wound and appetite wound. Moreover Aloe Vera has its potential to instant product development in the forms of medicine food and cosmetics. The development purpose of yogurt ice cream with Aloe Vera added is to study the proper quantity of Aloe Vera in the yogurt ice cream along with the quality of Yogurt ice cream with Aloe Vera added product throughout the consumer’s satisfactions of the product as well. After the study of Aloe Vera chemical properties it indicates that each 100 grams of Aloe Vera has 3.20 kcal of energy 0.80 percent of carbohydrate less than 1.25 percent of protein 0.20 percent of ashes 99.0 percent of humidity and 0.64 percent of fiber. The study of production process indicates that the proper quantity of yogurt and Aloe Vera to add in the product of yoghurt ice cream with Aloe Vera added are yogurt at 60 percent and Aloe Vera at 50 percent. The study of physical side of quality indicates that the yogurt ice cream with Aloe Vera added has an increasing viscosity rate up to 1525 cps. color level at L* 91.98 a* -0.48 b* 14.28 infusible solid at 26.4 brix degrees. The melting rate of yoghurt ice cream with Aloe Vera added is at 67.90 and overrun rate is at 72.76. The study of chemical properties show that each 100 grams of yogurt ice cream with Aloe Vera added gives 147 kcal of energy 15.4 percent of carbohydrate 2.04 of protein 8.55 percent of fat 73.6 percent of humidity 0.42 percent of fiber and 0.46 percent of ashes. After proceeding yoghurt ice cream with Aloe Vera added to consumer test to research consumer’s satisfactions and to study marketing tendency for sale the target group is general amount of 200 persons. The study shows that the acceptance of consumer is in the level of high to highest.