scholarly journals Perubahan Fisiko-Kimiawi dan Mikrobiologis Minuman Tradisional Bali (Loloh) selama Penyimpanan

2019 ◽  
Vol 39 (1) ◽  
pp. 70
Author(s):  
I Desak Putu Kartika Pratiwi ◽  
I Ketut Suter ◽  
Putu Ari Sandhi Widpradnyadewi ◽  
Anak Agung Istri Sri Wiadnyani
Keyword(s):  
Vitamin C ◽  
Shelf Life ◽  
Room Temperature ◽  
Titratable Acidity ◽  
Plate Count ◽  
Total Plate Count ◽  
Microbiological Characteristics ◽  
Physico Chemical ◽  
Soluble Solid ◽  
Standard Limit

Loloh is a Balinese traditional beverage made from one or a combination of several herbal extracts. The most popular variants of loloh in Bali are loloh tibah and loloh cem-cem, which are continuously produced every day. During distribution, loloh is stored at room temperature. The study was aimed to study the physico-chemical and microbiological characteristics of loloh cem-cem and loloh tibah during storage at room temperature.  This study used a purposive random sampling. The samples consisted of 14 loloh sellers in Badung-Denpasar. Type parameters that were observed during a 24 hour-storage at room temperature included pH, total soluble solid, titratable acidity, ascorbic acid, total plate count, total yeast and mold count. During room temperature storage, the level of total plate count, total mold/yeast of loloh cem-cem and loloh tibah changed significantly. The shelf life of loloh cem-cem was only 12 hours at room temperature (28-30 oC) with the characteristics of pH 2.95, TSS 5.67 °Brix, vitamin C 19.35 mg/100 g, titratable acidity 0.24%, log total plate count 6.48 Cfu/mL, log total mold/yeast 5.01 Cfu/mL. The shelf life of Loloh tibah was only 12 hours at room temperature (28-30 ºC) with the characteristics of pH 3.34, TSS 4.21 °Brix, Vitamin C 10.20 mg/100 g, titratable acidity 0.13%, log total plate count 6.68 Cfu/mL, log total mold/yeast 5.86 Cfu/mL. Beyond the 12 hour-storage, both of the lolohs had higher total colony counts than the upper standard limit.

scholarly journals Evaluation of the Effect of Ethephon in Postharvest Tomato (Lycopersicon esculentum)

2019 ◽  
pp. 1-8
Author(s):  
Urmi Rani Devi ◽  
Ayesha Begum ◽  
Nilufa Yeasmin
Keyword(s):  
Vitamin C ◽  
Shelf Life ◽  
Chemical Properties ◽  
Titratable Acidity ◽  
Treated Group ◽  
Total Soluble Solid ◽  
Lower Amount ◽  
Physico Chemical ◽  
Soluble Solid ◽  
Β Carotene

Aims: The aim of this study is to determine the effect of applying ethephon on postharvest tomato. Study Design: Completely Randomized Design (CRD). Place and Duration of Study: The study was conducted in the laboratory of the Department of Applied Food Science and Nutrition, Department of Food Processing and Engineering, Department of Applied Chemistry and Chemical Technology of Chittagong Veterinary and Animal Sciences University, Chittagong, Bangladesh. It was conducted for a period of six months from 1st January, 2018 to 30th June, 2018. Methodology: TSS (Total Soluble Solid) was determined by using hand refractometer, proximate composition by standard AOAC method, vitamin C and β-carotene by UV-spectrophotometric method, sodium and potassium by flame photometric method, titratable acidity, calcium and magnesium by titremetric method. To compare differences in control and treated group, significant difference was considered at the level of P<0.05.   Results: Ethephon treated tomatoes ripen quickly with attractive surface color and had shorter shelf life than non-treated tomatoes (control). Physico-chemical properties including total soluble solid and titratable acidity increased significantly (P<0.05) in treated group (4.66±0.57°B; 0.32±0.01% respectively) than control (3.33±0.57°B; 0.28±0.01% respectively). Moisture content also significantly (P<0.05) increased in ethephon treated tomato (94.15±0.27g/100g) than non-treated (85.54±0.23g/100g). But significantly lower amount of carbohydrate, ash, crude fiber were observed in artificially ripened tomato by ethephon (2.5±0.45g/100g; 0.51±0.02g/100g; 0.82±0.03g/100g respectively) than naturally ripened (3.7±0.26g/100g; 0.59±0.01g/100g; 0.90±0.01g/100g respectively). Apparently protein and fat content were found insignificantly less amount in artificially ripened tomato by ethephon. The significant lowest concentration of vitamin C and β-carotene were observed in ethephon ripened tomato (16.65±0.01mg/100g; 413.33±1.15μg/100g respectively). Mineral contents of ethephon treated tomato (Na 3.65±0.47mg/100g; K 199±1.00mg/100g; Ca 4.75±0.07mg/100g; Mg 8.57±0.19mg/100g) found significantly (P<0.05) fewer amounts than control tomato (Na 3.96±0.01mg/100g; K 213.67±0.57 mg/100g; Ca 5.57±0.15mg/100g; Mg 9.96±0.04mg/100g). Conclusion: Application of ethephon on postharvest tomato hastens ripening time and physico-chemical properties but reduces shelf life and nutritive value of tomato.

scholarly journals KEBERADAAN MIKROBA PADA BAKSO IKAN ASAP CAIR, YANG DIKEMAS DALAM RETORTABLE POUCH, DIPASTEURISASI DAN DISIMPAN PADA TEMPERATUR RUANG

2016 ◽  
Vol 4 (2) ◽  
pp. 85
Author(s):  
Margani Luyuani Rohana ◽  
Siegfried Berhimpon ◽  
Joyce CV Palenewen
Keyword(s):  
Shelf Life ◽  
Water Content ◽  
Experimental Method ◽  
Room Temperature ◽  
Plate Count ◽  
E Coli ◽  
Existing Problems ◽  
Liquid Smoke ◽  
Total Plate Count ◽  
And Storage

A research has been done to assess the presence of microbes and the shelf life of fish balls dipped in liquid smoke, packed in retortable pouch, pasteurized, and stored at room temperature. The method used in this research is an experimental method that revealed the facts based on existing problems through hypothesis testing. Parameters assessed are Total Plate Count (TPC), total Salmonella, total coliforms and E. coli, total vibrio, water content, and pH. Fish balls were pasteurized in 85ºC and stored in room temperature for 0, 3, 6, and 9 days, and were pasteurized at 100°C and storage in room temperature for 0, 9, 18, and 27 days. The results shown that all pathogen were negative, but based on Indonesian standard (SNI 01-7266-1-2006) especially TPC value, fish balls were packaged in retortable pouch and without pasteurized is no longer acceptable for consumption after 3 days of storage, and fish balls were packaged in retortable pouch and pasteurized at 85ºC no longer acceptable for consumed after 6 days of storage. While the fish balls are packaged in retortable pouch and pasteurized at 100°C is no longer acceptable for consumed after 18 days of storage.Keyword: Retortable Pouch, Pasteurization, Pathogens.  Penelitian ini bertujuan untuk mengetahui keberadaan mikroba dan daya awet bakso ikan yang direndam dalam asap cair dan dikemas dalam Retortable pouch, dipasteurisasi, dan disimpan pada temperatur ruang. Metode yang digunakan dalam penelitian ini adalah metode eksperimen untuk menguji hipotesa. Parameter yang diamati yaitu Angka Lempeng Total (ALT), Salmonella, total koliform dan E.coli, total vibrio, analisa kadar air, dan nilai pH. Bakso ikan asap cair yang dipasteurisasi pada 85ºC, disimpan pada temperatur ruang selama 0, 3, 6, dan 9 hari, dan yang dipasteurisasi pada 100ºC, disimpan pada temperatur ruang selama 0,9,18, dan 27 hari. Hasil penelitian menunjukkan bahwa bakso ikan yang dikemas dalam Retortable pouch, tanpa dipasteurisasi sudah tidak layak lagi untuk dikonsumsi setelah penyimpanan 3 hari, dan bakso ikan yang dikemas dalam Retortable pouch dan dipasteurisasi pada 85ºC sudah tidak layak lagi untuk dikonsumsi setelah penyimpanan 6 hari. Bakso ikan yang dikemas dalam Retortable pouch, dan dipasteurisasi pada 100ºC nanti tidak layak lagi dikonsumsi setelah penyimpanan 18 hari.Kata Kunci: Kemasan Retortable Pouch, Pasteurisasi, Patogen.

scholarly journals Methyl Red Indicator on Smart Packaging as a Freshness Sensor for Tilapia Fillets

2019 ◽  
pp. 1-9
Author(s):  
Kinanthi Ayu Sariningsih ◽  
Iis Rostini ◽  
Kiki Haetami
Keyword(s):  
Shelf Life ◽  
Room Temperature ◽  
Plate Count ◽  
Methyl Red ◽  
Total Volatile ◽  
Film Sensor ◽  
Smart Packaging ◽  
Color Changes ◽  
Total Plate Count ◽  
Tilapia Fillets

This research aims to analyze the response of methyl red indicator film sensor label color changes on smart packaging in detecting the freshness of tilapia fillets over a shelf life of 10 hours at room temperature (± 25ºC). This research uses a comparative descriptive method. The parameters observed were pH values, total plate count (TPC) and total volatile base nitrogen (TVBN). The results of this research indicate that the response of the film label consists of several concentrations of methyl red namely control (0%); 0.05%; 0.5% and 1%. The best results from film sensor label response is 0.05% Methyl red concentration in detecting the freshness of tilapia fillets and showed the most rapid response to changing the color of the label at the observation of the 7th hours during storage of 10 hours with 8 times the observation time. The freshness of tilapia fillets has decreased quality with changes in pH that tend to fluctuate ie the pH has decreased and then rose again as the color changes are indicated by the film label from yellow to reddish-orange. Total volatile base nitrogen (TVBN) and total plate count (TPC) during the observation showed a trend towards the same graph results, namely, the longer shelf life will increase the decrease in freshness quality of tilapia fillets with marked decay. Therefore, the freshness level of tilapia fillets can be determined by the smart packaging sensor methyl red indicator label at room temperature storage (± 25ºC).

scholarly journals Application of Liquid Smoke from Coconut Shell in Tandipang (Dussumeiria Acutta) Smoked Fish To Extend Shelf Life

2020 ◽  
Vol 12 (2) ◽  
pp. 315
Author(s):  
Dyah Ayu Rakhmayeni ◽  
Tatty Yuniarti ◽  
Sukarno Sukarno
Keyword(s):  
Activation Energy ◽  
Shelf Life ◽  
Room Temperature ◽  
Plate Count ◽  
Fish Products ◽  
Smoked Fish ◽  
Liquid Smoke ◽  
Quality Degradation ◽  
Total Plate Count ◽  
Different Temperatures

Highlightaw on smoked tandipang fish analyzed.Peroxide value on smoked tandipang fish analyzed.TPC on smoked tandipang fish analyzed.The shelf life of liquid smoked tandipangfish stored at 27o C was obtained the value of t = 23.2 in units of weeks or 5.8 months of storage.AbstractFumigation using liquid smoke produces smoked fish products with a smoky flavor character and can increase shelf life. The research objective was to determine the shelf life of the tandipang fish which was processed using liquid smoking. The test was carried out by storing smoked fish in an incubator at different temperatures 30 °C, 40 °C, and 50 °C with three replications for 5 weeks (35 days). The samples prepared at each temperature were kept in an incubator for five weeks. The parameters tested for estimating shelf life are using the test data aW (activity water), peroxide number, and TPC (total plate count). The three parameters are selected by one parameter to calculate the shelf life of liquid smoked tandipang fish which is considered to greatly affect the quality degradation during storage. The aw parameter is used to determine the shelf life because it has a high R2 value with an activation energy of 86972.75 J / mol.K. Estimation of shelf life of liquid cured fish at room temperature using aw parameter is 23.2 weeks or 5.8 months.

scholarly journals Effect of Manihot esculenta Edible Coating Blended with African Basil (Ocimum gratissimum) Essential Oil on the Shelf-Life of Mango Fruits

2021 ◽  
pp. 17-30
Author(s):  
Decrah M. Nyangena ◽  
Phanice T. Wangila ◽  
Jackson K. Cherutoi
Keyword(s):  
Weight Loss ◽  
Essential Oil ◽  
Vitamin C ◽  
Shelf Life ◽  
Room Temperature ◽  
Edible Coating ◽  
Soluble Solids ◽  
Chemical Parameters ◽  
Ocimum Gratissimum ◽  
Physico Chemical

Aims: To establish the shelf -life of mango fruits coated with unmodified and modified M. esculenta edible coating at low (4 ± 2°C) and room temperature (23 ± 2°C) conditions. Place and Duration of Study: The study was done at Moi University, School of Sciences and Aerospace studies, Department of Chemistry and Biochemistry between January 2021 and June 2021. Methodology: Ocimum gratissimum leaves essential oils was obtained by hydro-distillation method using Clevenger apparatus. Preparation and modification of the coating were homogenized at 70 ± 2 °C. Physico-chemical parameters including weight loss, titratable acidity (TA), Vitamin C concentration, total soluble solids (TSS), and pH were used to establish the fruits’ shelf-life. Results: The modified M. esculenta (cassava) starch coating (1.5%) treatment, their interactions and storage duration significantly affected the physico-chemical parameters of mango fruits. The modified coating-maintained TA 0.66%, 0.87%, reduced weight loss by 27.81%,14.62%, delayed the increase of TSS 7.50%, and pH 5.20, 4.93 while retaining the vitamins C 8.13 mg/100g, 15.09mg/100g concentration up to eighteen days and twenty-seven day of storage at 23 ± 2°C and 4 ± 2°C respectively. The distilled water treatment (control) reduced TA to 0.11%, 0.23%, increased weight loss to 47.12%, 24.21%, TSS 20.22%, 17.41%, and pH 8.21, 5.20 while retaining the vitamin C 3.74 mg/100 g, 8.13 mg/100 g concentration at 23 ± 2°C and 4 ± 2°C respectively. Conclusion: Results of the present study showed that M. esculenta edible coating incorporated with O. gratissimum essential oil extended the shelf life of mangoes up to eighteen and twenty-seven days of storage at room temperature (25 ± 2°C) and low temperature (4 ± 2°C), respectively. This treatment might be an effective farm-based post-harvest treatment in prolonging the shelf life of fresh produce while maintaining their physico-chemical parameters.

scholarly journals Physical and chemical characterization of yellow mangosteen fruits

2006 ◽  
Vol 28 (2) ◽  
pp. 325-327 ◽  
Author(s):  
Ítalo Herbert Lucena Cavalcante ◽  
Natanael de Jesus ◽  
Antonio Baldo Geraldo Martins
Keyword(s):  
Vitamin C ◽  
Chemical Characterization ◽  
Titratable Acidity ◽  
State University ◽  
Fruit Peel ◽  
Weight Percentage ◽  
Physico Chemical ◽  
Soluble Solid ◽  
Physical And Chemical

The work had as objective the physico-chemical characterization of yellow mangosteen fruits. Six samples of 25 fruits were harvested in yellow mangosteen plants of the Active Germoplasm Bank of São Paulo State University and characterized by evaluation of length and width, weight, percentage and number of seeds per fruit, peel and pulp percentage, soluble solid (SS), titratable acidity (TA), vitamin C and SS/TA rate. Yellow mangosteen fruit is an intermediate vitamin C source with an average content 120.33 mg/100g of fresh fruit and has good technological quality.

Quality assessment of sprouted mung beans at various storage temperatures

2019 ◽  
Vol 56 (1) ◽  
pp. 26
Author(s):  
Shashi Prabha ◽  
Sangeeta Goomer
Keyword(s):  
Vitamin C ◽  
Shelf Life ◽  
Room Temperature ◽  
Plate Count ◽  
Microbial Count ◽  
Subsequent Decrease ◽  
Microbiological Parameters ◽  
Different Temperatures ◽  
Shelf Life Studies ◽  
Storage Temperatures

The present study was conducted with an objective to assess the quality of sprouted mung beans stored at different temperatures. Mung beans sprouts were processed at laboratory in controlled conditions, packed in LDPE pouches and were stored at summer room temperature (SRT) (30-32°C), winter room temperature (WRT) (15-18°C) and refrigeration temperature (RT) (7°C). Shelf life studies were conducted periodically for physical, chemical and microbiological parameters for 5 days at their respective storage temperatures. During shelf life studies, several changes were observed in sprouted samples of mung beans. There was a significant (p&lt;0.05) increase in shoot length of sprouted mung beans samples stored at SRT followed by WRT and RT. Decrease in moisture content was significantly (p&lt;0.05) more at RT followed by WRT and SRT. Vitamin - C content increased significantly (p&lt;0.05) up to 1st day of storage at SRT and WRT, with decrease thereafter. Whereas at RT significant (p&lt;0.05) increase was observed till 2nd day of storage followed by decrease afterwards. Vitamin - C content retained better at RT (16.6%) followed by WRT (6.3 %), while at SRT loss of 6.9% was observed. Acidity increased significantly at all three storage temperatures followed by subsequent decrease. Microbial count in terms of total plate count, yeast and mold count was comparatively higher at SRT followed by WRT and RT, though within acceptable range, whereas Coliform count was not detected at any stage. Thus it can be concluded that at RT (7°C) within two days of storage, optimal retention of physicochemical and microbiological qualities are achieved.

scholarly journals Evaluation of Nutritional and Physico-Chemical Properties of Several Selected Fruits in Bangladesh

1970 ◽  
Vol 44 (3) ◽  
pp. 353-358 ◽  
Author(s):  
M Nazmul Haque ◽  
Barun Kanti Saha ◽  
M Rezaul Karim ◽  
M Nurul Huda Bhuiyan
Keyword(s):  
Vitamin C ◽  
Chemical Properties ◽  
Titratable Acidity ◽  
Arsenic Content ◽  
Crude Fibre ◽  
Total Carbohydrate ◽  
Sodium Potassium ◽  
Physico Chemical ◽  
Soluble Solid ◽  
Total Fat

In this study , various parameters on nutritional and physico-chemical characteristics of eight different fruits (five minor and three major fruits), namely melon, guava, papaya, karanda, burmese-grape, velvet apple, wood-apple and pomelo of Bangladesh were analyzed to determine the edible portion of whole fruit, pH, titratable acidity, moisture, total soluble solid, reducing sugar, total sugar, crude fibre, total carbohydrate, total protein, total fat, total energy, vitamin C, ash , sodium, potassium, iron and arsenic content. The largest amount of iron, 5.34 mg/100g was observed in Burmese-grape. The pomelo contained the highest amount of potassium, 233.07mg/100g and the lowest amount of sodium, 2.25mg/100g. The maximum amount of fibre, 6.21% was found in wood-apple and the richest quantity of vitamin C, 80mg/100g was found in guava. In general arsenic was not found in karanda, burmese grape, guava, pomelo, wood-apple, and papaya and only negligible amount of arsenic was revealed in velvet apple, 0.01 mg/kg, followed by melon, 0.005 mg/kg. Key words: Minor and major fruits, Malnutrition, Micronutrient, Bangladesh DOI: 10.3329/bjsir.v44i3.4410 Bangladesh J. Sci. Ind. Res. 44(3),353-358, 2009

scholarly journals Evaluation of Nutritional, Physico-Chemical and Sensory Properties of Jackfruit (Artocarpus heterophyllus) Incorporated Frozen Yoghurt

2020 ◽  
Vol 39 (01) ◽  
Author(s):  
T. M.P.M. Dissanayaka ◽  
K. H.I. Gimhani ◽  
W. A.H. Champa
Keyword(s):  
Escherichia Coli ◽  
Protein Content ◽  
Frozen Storage ◽  
Titratable Acidity ◽  
Sensory Properties ◽  
Plate Count ◽  
Artocarpus Heterophyllus ◽  
Sensory Data ◽  
Total Plate Count ◽  
Physico Chemical

The study was conducted to develop frozen yoghurt, flavoured with jackfruit pulp. Sensory data revealed that, the sample incorporated with 15% jackfruit pulp had the best qualities. Protein content of all jackfruit pulp incorporated frozen yoghurts was significantly higher (p 0.05) and their fat content was significantly lower (p 0.05) compared to the control. Significantly higher (p 0.05) overrun was observed in the frozen yoghurt containing 20% of jackfruit pulp compared to the control. Titratable acidity increased and pH decreased in all samples during the storage. Though total plate count of all jackfruit pulp incorporated frozen yoghurts increased upon storage, it was less than that of the control. Escherichia coli, yeast and mould were not detected for a period of 35 days at frozen storage. In conclusion, physicochemical, microbiological, and sensory properties of frozen yoghurt improved significantly by adding jackfruit pulp at rate of 15% (w/w).

scholarly journals Physico-Chemical Changes, Microbiological Properties, and Storage Shelf Life of Cow and Goat Milk from Industrial High-Pressure Processing

Processes ◽  
2020 ◽  
Vol 8 (6) ◽  
pp. 697 ◽  
Author(s):  
Sok Fern Tan ◽  
Nyuk Ling Chin ◽  
Tuan Poy Tee ◽  
Sook Kuan Chooi
Keyword(s):  
High Pressure ◽  
Shelf Life ◽  
Chemical Properties ◽  
Goat Milk ◽  
High Pressure Processing ◽  
Cow Milk ◽  
Plate Count ◽  
Psychrotrophic Bacteria ◽  
Total Plate Count ◽  
Physico Chemical

Industrial high-pressure processing (HPP) was conducted on cow and goat milk in comparison to conventional heat pasteurization. No significant changes were found in the physico-chemical properties of the treated milk except for pH, where pasteurized cow milk experienced a decrease while goat milk’s pH increased for both pasteurized and HPP treated. HPP-treated cow and goat milk both achieved microbial shelf life of 22 days at 8 °C storage with no increase in Bacillus cereus, mesophilic aerobic spores, coliform, yeast and mold but slight increase in psychrotrophic bacteria and total plate count. Pasteurized goat milk was spoilt at the end of storage with exceeding count of psychrotrophic bacteria (9.0 × 108 CFU/mL) and total plate count (3.5 × 108 CFU/mL). HPP-treated cow milk exhibited higher physico-chemical stability than goat milk as evidenced by non-significant change of titratable acidity but goat milk experienced an increase of 0.04% averagely.

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