Jurnal Agroindustri
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STUDY OF PRESERVATIONDRY SWEET PINEAPPLE (Ananas comous L. Merr) DURING STORAGE
Get PDFProcessing fresh pineapple into dried sweet pineapple can preserve product during storage. Durability dry sweet products can be maximized by combining sugar with other preservation techniques such as paesterisasi treatment, enhance sodium benzoate, and packaging technology. The objective the study is to find out durability time product dry sweet pineapple. The study design used experiments making dried sweet pineapple which consists of several stages. There are stripping, washing, cutting, boiling, cooking, soaking, drying and packaging. Drying is done for 3 days under the sun. The durable time have known by observations during storage; dry sweet pineapple with packaging and stored without packaging. Product damage during observed indicated by physical appearance, color and texture. Durability dry sweet pineapple without packaging lower than product with packagin
PERFORMANCE OF MODIFIED YSD-UNIB12 SOLAR DRYER FOR CLOTHES MATERIAL DRYING
Get PDFYSD-UNIB12 solar dryer has been modified its interior by replacing the trays with rail suitable for clothes hanger and size in order to be applied to dry clothes. The dryer had 3 x 6 m2 total area with about 300 pieces of clothes capacity. The dryer finishes drying of wet towel faster (about 12 hours) than that of sun drying (more than 18 hours). The dryer also completed drying of “batik” cloth comparable to that of sun drying (about 13 hours) and drying of singlet faster (12 hours) that of sun drying (13 hours). The modified YSD-UNIB12 resulted better quality of dry cloth and was ready to be adopted for drying clothe
THE EFFECT OF SLICE THICKNESS AND FRYING TEMPERATURE CHARACTERISTICS OF PUMPKIN CHIPS BY VACUUM FRYING METHOD
No full textThe objective of research was to determine the effect of slice thickness and frying temperature on the physical, chemical and sensorycharacteristics of pumpkin chips by vacuum frying method. Research used a Factorial Completely Randomized Block Design with 2 treatments and 3 replications. A factor (the slice thickness: 1, 2, and 3 mm) and B factor (frying temperature : 80, 90, and 100oC). The results showed that the slice thickness had significant effect on the crispy texture, yield, and water content of pumpkin chips. The temperature had significant effect on the lightness, chroma, crispy texture, yield, and moisture content. Interaction slice thickness and temperature had significant effect on the water content of pumpkin chips. A3B3 treatment (slice thickness 3 mm and frying temperature 100oC) was the best treatment with physical characteristic (yield 17.47%, crispy texture 183.6 gf, colour with 54.63% lightness, 42.17% chroma and 54.90o hue), chemical cha-racteristic (1.63% water content, 8.08% ash content) and sensory characteristics by scoring preferences 3.48 crispy texture, 3.2 flavour, 2 colour and 3.32 taste. A3B3 treatment had 1.58 dissoluble fiber content, 12.92 mg/mL IC50 antioxidant activity, 21.90 fat rate,1.46 ppm total carotene
CHARACTERISTICS OF JELLY CANDY OF PAPAYA (Carica papaya L.) WITH ADDITION OF COW GELATIN
No full textPapaya is very potential to be developed as an industrial raw material candy because it contains a number of phytochemical compounds that are beneficial for the body. This study aims to investigate the characteristics of jelly candy of papaya with addition of cow gelatin by 6%, 8% , 11% and 13%. In jelly candy made observations on pH, moisture content, ash content, reducing sugar content, sucrose content, vitamin C content, total acid, antioxidant activity by DPPH, total plate count, organoleptic and the best jelly candy analysis of beta-carotene The results showed that the addition of 11% cow gelatin to produce the best characteristics of jelly candy. The parameters are pH 4.83, 17.63% moisture content, ash content of 0.98% , 19.75% reduction sugar , sucrose content of 35.48%, levels of vitamin C 59.81 mg/100gr material, total acid 2.09%, 35.33% antioxidant activity, total plate count 3.9 x 103 colonies/g, 7.9934 mg/100 g levels of beta-carotene, and organoleptic tests with a level, 95% color, scent 85%, 85% flavor, and texture of 95%
THE QUALITY OF COCONUT VINEGAR PRODUCED BY SLOW METHODS
No full textThe vinegar production needs two steps, the sugar changing to alcohol by yeast and then alcohol changing to vinegar by acetic acid bacteria. The vinegar could be produce by slow methods. The purposed of this study were to determine the influence of yeast and sugar using against the quality of fermentation result in first step (anaerobic), analyzing the influence of fermentation time against the vinegar quality based on SNI 01-3711-1995, and study the influence of fermentation time against the acetic acid content in second step (aerobic) with slow methods. This research used completely randomized design, the adding sugar (3 level) and yeast (3 level) as treatment. Each treatment was repeated three times. While the observation of vinegar quality used experiment research without the difference of treatment and repetition, used single error design. Result of research showed that vinegar quality have been suitable with SNI 01-3711-1995 about vinegar, include form, smell, acetic acid content, formic acid and oxalic acid. If the fermentation time be longer, the acetic acid content be lower in aerobic fermentation with slow methods, it was showed by the exponential regression formula ?= 20,695e-0,088x
STUDY ON QUALITY CHANGES OF LEMEA DURING STORAGE IN VARIOUS TYPES OF TEMPERATURE AND PACKAGING MATERIALS
No full textLemea is a traditional food from Rejang tribes that needs improvement in packaging so that the product can compete with other packaged foods. A study to get the proper packaging to maintain lemea’s quality using various types of packaging materials and storage temperatures is necessary to be conducted. The objective of this study is to examine effect of various types of packaging materials and storage temperature on quality changes of lemea. The study designed using CRD with 2 factors and 3 replications. Type of packaging material used in this research is LDPE plastic with a thickness of 0:01 mm, OPP / PP multilayer plastic with a thickness of 0.05 mm and PETE plastic bottles with a thickness of 1:25 mm; storage temperature used is room temperature at 27-32 °C and refrigerator temperature at 12-15 °C. Parameters measured were changes in water content, pH value, the number of colonies of microbes and organoleptic (color, scent, shape and overall acceptance attributes of lemea) on lemea that stored for 28 days with the observation point on day 7, 14, 21 and 28. Various of packaging materials of lemea are LDPE plastic, OPP / PP multilayer plastic, and PETE plastic bottles showed significant effect on moisture content, pH, TPC, and organoleptic in room temperature storage at 27-32 °C but it had no significant effect in the refrigerator temperature storage at 12-15 °C. The difference in storage temperature affects the occurrence of deviation or alteration of lemea quality
EFFECTS OF CARRAGEENAN COATING ON ORGANOLEPTIC QUALITY OF BOILED SHRIMP DURING REFRIGERATION STORAGE
Get PDFOne of the most popular seafood in the world is shrimp, including cooked shrimp. Boiled shrimp is a value added product with high protein content, specific taste, ready to eat, and have an interested colour for consumers. Boiled shrimp must be protected from quality deterioration during storage. The research was carried out to study the effect of carrageenan coating to inhibit the quality deterioration of boiled shrimp based on organoleptic evaluation during refrigeration storage (4-6oC). Peeled undevined (PUD) vannamei (Litopenaeus vannamei) with size 60-70 was used as object. The boiled shrimps treated with two treatmens, which were coated and uncoated boiled shrimps. Application of coating carrageenan on boiled shrimp indicate that coating application could extend its shelf life, proved by higher organoeptic value than uncoated product, based on organoleptic evaluation for frozen boiling shrimp (SNI 01-2346-2006)
APPLICATION OF QUALITY FUNCTION DEPLOYMENT TO IMPROVE THE QUALITY OF DRY FISH BLEBERAN IN BENGKULU CITY
Get PDFThe research objective is to determine the customer expectations, the activities process and their’s importance level; determine the relationship between customer expectations and process activity; determine the product’s performance against competitor’s product; and formulate recommendations for improving the product quality. The method used is Quality Function Deployment (QFD) with 42 persons as consumer respondents. The results showed that the importance level of the consumer expectations to Bleberan dried fish by ranking are moisture content, shelf life, shape, texture, price, aroma, microorganism content, colors, packaging and additives. The importance level of process activity is the drying process, packing, salting, separation and sorting, and washing or cleaning. The eminence of Bleberan dried fish in Bengkulu City is for its water content, texture and aroma when it compared to competitor products. Unfortunately, the shelf life, price and packaging are still below competitors' products. While Shape, content of microorganisms and additives of Bleberan dried fish in Bengkulu city is equal to competitors' products. The quality attributes that need to be improved is the shelf life, packaging and content of microorganisms. According to quality improvement, the three main activities of process that must be improved are drying process, packing and salting
STUDY ON PROCESSING OF DRIED CHILI INTO BLOCK CHILI
No full textThe research objective is to obtain the drying period of various capacities dryer to reach the best moisture content in the process of blocks dried chili production and gaining the consumer acceptance to the product. This study used a completely randomized design (CRD) with two factors: the capacity of the material and the drying time and three times repetition. The measured parameters were changes of weight during drying process, moisture content, organoleptic tests and levels of acidity (pH). The results showed that the drying periods with best moisture in the process of blocks dried chili production are drying for 8 hours at capacity of 0.3 g/cm2, 10 hours at a capacity of 0.5 g/cm2 and 10 hours at a capacity of 1 g/cm2. The highest consumer acceptance to the product for the color, aroma and overall attributes is on the blocks dried chili with a water content of 41-60%, while for the aroma is on the blocks dried chili with a water content of 61-80%
PERFORMANCE OF A PIPE SLOW SAND FILTER (SSF-P) WITH DIFFERENCE HYDRAULIC HEADS ON FILTERING POLLUTANTS OF CRUMRUBBER PLANT LIQUID WASTE
Get PDFPipe slow sand filter (SSF-P) is an undertest slow sand filter (SSF) technology promising some advanatages. Purpose of this research is to test the performance of SSF-P with differencce level of hydraulic heads on reducing pollutants of crumrubber plant liquid waste. The SSF-P tested was a 5-inches-diameter, 50cm-long SSF-P and hydraulic heads applied were 10 cm, 20 cm and 30 cm. Result of test showed that SPL-P installed with all hydraulic heads tested were capable of reducing significant amount of pollutants, and with 10 cm head capable of producing filtrate with TSS, pH and NH3-N satisfying grade 1 (drinking) water