Effect of Curing, Antioxidant Treatment, and Smoking of Buffalo Meat on pH, Total Plate Count, Sensory Characteristics, and Shelf Life During Refrigerated Storage

2005 ◽  
Vol 8 (1) ◽  
pp. 139-150 ◽  
Author(s):  
S. Ahmad ◽  
A. Anzar ◽  
A.K. Srivastava ◽  
P.K. Srivastava
Keyword(s):  
Shelf Life ◽  
Sensory Characteristics ◽  
Plate Count ◽  
Refrigerated Storage ◽  
Antioxidant Treatment ◽  
Buffalo Meat ◽  
Total Plate Count

Impact of Storage and Packaging Material on the Nutritional, Product Properties and Microbial Count of Extruded Snacks

2020 ◽  
Vol 16 (4) ◽  
pp. 592-600
Author(s):  
Sajad A. Wani ◽  
Tariq A. Bhat ◽  
Nawaz A. Ganie ◽  
Pradyuman Kumar
Keyword(s):  
Bulk Density ◽  
Storage Period ◽  
Sensory Characteristics ◽  
Plate Count ◽  
Extrusion Cooking ◽  
Lateral Expansion ◽  
Total Plate Count ◽  
Sensory Score ◽  
Extruded Snacks ◽  
Kinetics Of

Background: The extrusion cooking is the most widely used process so the development and consumption of extruded snack products having health and nutritious benefits would help increase the health status of the population. Objective: The aim of this study was to investigate the effect of storage days on physical, microbial activity and sensory characteristics of extruded snacks and kinetics of extruded snacks. Methods: Extruded snacks were produced by extrusion cooking at optimized conditions of temperature, moisture and screw speed of 110°C, 12% (db) and 200 rpm. The products were packed in lowdensity polyethylene (LDPE) and laminated pouches (LP) and were stored at an accelerated temperature condition of 40 ± 2°C. The storage stability in terms of quality parameters such as moisture, hardness, bulk density, color, lateral expansion, sensory characteristics and total plate count was investigated. Results: An increase (p≤0.05) in the value of moisture, bulk density, a*, and total plate count was observed during the storage period, whereas hardness, L*, b*, ΔE and sensory characteristics showed significant (p≤0.05) decreased order with storage period. No significant effect on the lateral expansion of the extruded product was observed. A significant decrease in total carbohydrate, fat and protein content was found during the storage period. The average sensory score and microbial analysis suggested that extruded snacks packed in LDPE pouches can only be acceptable up to the 60th day and extruded snacks packed in LP can be acceptable to more than 90th day. The kinetics of color and hardness suggest first order kinetics. Conclusion: Overall investigation suggested that extruded snacks were more stable in the LP as compared to LDPE pouches.

scholarly journals Effect of Humidity-Controlled Dehydration on Microbial Growth and Quality Characteristics of Fresh Wet Noodles

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 844
Author(s):  
Jun-Jie Xing ◽  
Dong-Hui Jiang ◽  
Zhen Yang ◽  
Xiao-Na Guo ◽  
Ke-Xue Zhu
Keyword(s):  
Shelf Life ◽  
Microbial Growth ◽  
Treatment Time ◽  
Positive Influence ◽  
Quality Characteristics ◽  
Plate Count ◽  
Cooking Properties ◽  
Total Plate Count ◽  
Different Temperatures

Humidity-controlled dehydration (HCD) was innovatively applied in this paper to control the growth of microorganisms in fresh wet noodles (FWN). Effects of HCD treatment with different temperatures (40, 60 or 80 °C), relative humidity (RH, 50%, 70% or 90%) and treatment time (5–32 min) on the total plate count (TPC), the shelf-life, and qualities of FWN were investigated. The results showed that HCD reduced the initial microbial load on the fresh noodles and extended the shelf-life up to 14–15 days under refrigeration temperature (10 °C). A 1.39 log10 CFU/g reduction for the initial TPC was achieved after HCD treatment at the temperature of 60 °C and RH of 90%. HCD with higher RH had a more positive influence on quality improvement. The L* values, the apparent stickiness, and the cooking properties of the noodle body were improved by HCD while good sensory and texture quality of noodles were still maintained after the dehydration process.

scholarly journals UMUR SIMPAN SAMBAL PARI (Dasyatis Sp.) ASAP YANG DIKEMAS JAR PADA BEBERAPA CARA PEMASAKAN DENGAN METODE PENDUGAAN ACCELERATED SHELF-LIFE TESTING (ASLT)

2020 ◽  
Vol 13 (2) ◽  
pp. 118
Author(s):  
Dian Rachmawanti Affandi ◽  
Adhitya Pitara Sanjaya ◽  
Santi Rahma Mardiana
Keyword(s):  
Shelf Life ◽  
Plate Count ◽  
Life Testing ◽  
Total Plate Count

<p>Penambahan ikan pari asap pada pembuatan sambal dapat menjadi alternatif pengolahan ikan pari asap dan menghasilkan sambal dengan cita rasa khas. Selama penyimpanan, sambal mengalami penurunan mutu secara mikrobiologi serta menyebabkan perubahan aroma dan timbulnya asam pada sambal sehingga produk ditolak oleh konsumen. Penelitian ini bertujuan untuk mengetahui pengaruh variasi cara kualitas sensoris, kimiawi, dan mikrobiologis sambal ikan pari asap kemasan <em>jar </em>kaca selama penyimpanan, umur simpan sambal, serta menentukan cara pemasakan untuk memperpanjang umur simpan sambal. Pengemasan menggunakan <em>jar </em>kaca dan variasi cara pemasakan pada sambal ikan pari asap dilakukan untuk mencegah penurunan mutu. Variasi cara pemasakan yang dilakukan yaitu pemasakan kering (P1), pemasakan setengah kering (P2), dan pemasakan kering dengan penambahan minyak setelah pemasakan (P3). Selanjutnya, untuk memenuhi standar keamanan pangan dan sebagai jaminan mutu dilakukan pendugaan umur simpan sambal ikan pari asap menggunakan metode ASLT model Arrhenius yang memiliki waktu pengujian relatif singkat dengan ketepatan dan akurasi tinggi.  Parameter yang diuji adalah sensoris aroma, total asam tertitrasi (TAT), dan <em>total plate count </em>(TPC). Penurunan mutu sambal diamati pada penyimpanan suhu 35˚C, 45˚C dan 55˚C selama 48 jam dengan waktu pengamatan setiap 12 jam sekali. Berdasarkan hasil peneli tian, tiga variasi cara pemasakan sambal ikan pari asap memiliki penurunan mutu yang berbeda-beda selama penyimpanan. Umur simpan sambal ikan pari asap kemasan <em>jar</em> kaca menurut parameter kritis TAT pada cara pemasakan kering (P1) pada suhu 30˚C adalah 165,95 jam. Pada variasi pemasakan setengah kering (P2), umur simpan sambal pada suhu 30˚C adalah 155,04 jam. Pada variasi pemasakan kering dengan penambahan minyak (P3), umur simpan sambal pada suhu 30˚C adalah 197,96 jam. Variasi pemasakan kering dengan penambahan minyak goreng setelah pemasakan merupakan cara terbaik untuk memperpanjang umur simpan sambal ikan pari asap kemasan <em>jar </em>kaca.</p><p> </p><br clear="ALL" /><p> </p>

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.

Combined Effect of Electron-Beam (beta) Irradiation and Organic Acids on Shelf Life of Pork Loins during Cold Storage

2004 ◽  
Vol 67 (1) ◽  
pp. 168-171 ◽  
Author(s):  
BANG-HYUN KIM ◽  
AERA JANG ◽  
SANG O. LEE ◽  
JOONG S. MIN ◽  
MOOHA LEE
Keyword(s):  
Electron Beam ◽  
Organic Acids ◽  
Shelf Life ◽  
Thiobarbituric Acid ◽  
Plate Count ◽  
Combined Treatments ◽  
Thiobarbituric Acid Reactive Substances ◽  
Combination Treatments ◽  
Total Plate Count ◽  
Plate Counts

The combined effects of organic acids and irradiation on shelf life of pork loins were examined. Fresh pork loins were sprayed with organic acids (lactic, citric, and acetic) at 2%, packaged aerobically, and irradiated with an electron beam at 1, 2, and 3 kGy. During 14 days of storage, total plate count, coliform number, pH, and thiobarbituric acid–reactive substances were measured. Combinations of organic acid and irradiation were more effective in reducing and maintaining low total plate counts and coliform levels during storage than either treatment alone. Higher lipid oxidations were observed in all combination treatments at 1 day of storage than in the irradiation-only group. However, lower lipid oxidations were the result after 14 days of storage when combination treatments were used with irradiations of 2 and 3 kGy. Combined treatments involving lower irradiation doses than those required for irradiation alone could be used to extend the shelf life of pork loins during postirradiation storage without increasing lipid oxidation.

scholarly journals Shelf Life Extension of Maple pea (Pisum sativum var. arvense L.) Spread Using Sous Vide

2016 ◽  
Vol 70 (6) ◽  
pp. 393-399
Author(s):  
Asnate Ķirse ◽  
Daina Kārkliņa ◽  
Sandra Muižniece-Brasava
Keyword(s):  
Pisum Sativum ◽  
Shelf Life ◽  
Life Extension ◽  
Plate Count ◽  
Plate Count Agar ◽  
Total Plate Count ◽  
Glucose Agar ◽  
Sous Vide ◽  
Cooking Times ◽  
Ice Water

Abstract The aim of this study was to determine the effect of sous vide packaging on the shelf life of maple pea (Pisum sativum var. arvense L.) spread. Pea spreads were made of ground re-hydrated cooked maple peas ‘Bruno’ (Pisum sativum var. arvense L.), to which salt, citric acid, oil, and spices were added. Pea spread was stored in polyamide/polyethylene (PA/PE) film pouches, packaged in vacuum and hermetically sealed. Pea spread pouches were heat treated in a water bath, then rapidly cooled in ice-water and stored at 4.0 ± 0.5 °C. Sous vide was applied in three different heat regimens +(65.0; 80.0 and 100.0) ± 0.5 °C with cooking times 5, 10, 15, 20, 25, and 30 min at a constant temperature. Total plate count was determined according to ISO 4833-1:2014 on Plate Count Agar and Enterobacteriaceae determination was performed in accordance with ISO 21528-2:2004 on Violet Red Bile Glucose Agar. Total plate count in pea spread without thermal treatment was 3.41 log10 CFU g−1, in all sous vide packaged pea spread samples microbial contamination was significantly lower (p < 0.05). Enterobacteriaceae were not detected in any samples. It is possible to extend the shelf life of sous vide maple pea spread up to 14 weeks when stored at 4.0 ± 0.5 °C.

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 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 The Effect of Active Paper Packaging Enriched with Oleoresin from Solid Waste of Pressed Curcuma xanthorrhiza Roxb. Placement Methods on Quality of Refrigerated Strawberry (Fragaria x ananassa)

2021 ◽  
Vol 36 (1) ◽  
pp. 155
Author(s):  
Rohula Utami ◽  
Kawiji Kawiji ◽  
Windi Atmaka ◽  
Lulus Nurmaya ◽  
Lia Umi Khasanah ◽  
...  
Keyword(s):  
Solid Waste ◽  
Microbiological Quality ◽  
Fragaria X Ananassa ◽  
Soluble Solids ◽  
Plate Count ◽  
Refrigerated Storage ◽  
Titratable Acid ◽  
Total Plate Count ◽  
Curcuma Xanthorrhiza

Strawberry is a popular and nutritious fruit. However, its improper post-harvest handling leads to quality degradation. The aim of this study was to investigate the effects of active paper packaging placements methods on strawberry (<em>Fragaria x ananassa</em>) quality during refrigerated storage. Strawberry quality was determined based on the physical (weight loss, hardness, color), chemical (pH, total titratable acid, total soluble solids and vitamin C content) and microbiological (total plate count) properties. The results of this study indicated that different placement methods of active paper packaging had no significant effect on the physical and chemical qualities; but it did affect the microbiological quality of the strawberries. At the end of the experiment (12 days), the microbial content of C (the bottom and walls), D (covering all surfaces) and E (cut into pieces) samples were significantly lower than the A (without active paper packaging) and B (the bottom) samples. The Total Plate Count (TPC) values of the control and B samples were higher than the maximum acceptable limit of 6 log10 colony-forming units (CFU) g<sup>-1</sup>, while the other samples remained below the limit. These results indicated that a larger surface area of active paper that had contact with the strawberries provided better protection against microbes. Due to their microbial properties, C, D and E treatments maintained the strawberry quality for up to 12 days, compared with 9 days for control and B treatments. Active paper packaging containing oleoresin from solid waste of pressed <em>Curcuma xanthorrhiza</em> Roxb. can be applied to extend the shelf life of strawberries during refrigerated storage.

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