scholarly journals Physicochemical and Microbiological Appearance of Sapera Goat's Milk on Frozen Storage

2021 ◽  
Vol 16 (4) ◽  
pp. 308-314
Author(s):  
E. Prayitno ◽  
R. Hartanto ◽  
D.W Harjanti

This study aims to examine the effect of the storage time of milk at a temperature of -18? on the chemical, physical and microbiological content due to different storage times. The goat's milk studied was the milk of the Sannen Crossbreed of the Sapera goat. Twenty samples were taken from the milking results on the same day. The design used in this study was a completely randomized design (CRD) with five treatments and four replications. Samples were grouped according to treatment, namely 0d (control) and 10d, 20d, 30d, 40d; stored for 10, 20, 30 and 40 days, respectively. The milk storage process is carried out using a freezer at a temperature of -18?. The physicochemical and microbiological parameters observed were protein, fat, lactose, solid-non-fat (SNF), total solid (TS), specific gravity, pH, total plate count (TPC), and coliform. Evaluation of milk quality is based on the Indonesian National Standard (SNI) and Thai Agricultural Standard (TAS). The results showed that storage time did not significantly affect the components of fat, protein, lactose, total plate count, and coliform (p> 0.05). In milk stored for 40 days, there were differences in the values of SNF, TS, specific gravity, and pH compared to control (p<0.05). In terms of chemical, physical and microbiological quality, Sapera goat's milk stored at -18? for 40 days still complies with SNI and TAS. The process of storing and freezing milk can be an alternative for preservation to ensure the physical and chemical quality of Sapera goat's milk.

Author(s):  
Ludfia Windyasmara ◽  
Ahimsa Kandi Sariri

Abstract This study aims to determine the effect of the microbiological quality of broiler chicken meat that is marinated using pineapple extracts with different storage times at refrigerator temperature (180C). The stages of this research consisted of 2 stages, namely the first stage of making pineapple extract from fresh pineapples and the second stage was the marination process in which the broiler chicken meat samples were marinated using pineapple extract with a concentration of 30%. The experimental design used in this study was a completely randomized design (CRD) with one treatment factor (0 days, 3 days, 6 days, 9 days and 12 days) with each treatment repeated 4 times, in order to obtain 5 x experimental units. 4 = 20 experimental units. The microbiological analysis observed was the inhibition zone analysis and Total Plate Count (TPC). Giving marination with pineapple extract to the storage time of chicken meat has a significant effect on the inhibition zone. The highest zone of inhibition was 3.23 mm (for 6 days) while the lowest zone of inhibition was 2.21 mm (for 0 days). Provision of pineapple extract marination on the storage time of broiler chicken has a significant effect on the TPC. The highest TPC was 2.29 (for 12 days) while the lowest TPC was 0.30 (for 0 days). Keywords: Broiler chicken; Marination; Microbiological quality; Pineapple extract.   Abstrak Penelitian ini bertujuan untuk mengetahui pengaruh kualitas mikrobiologi daging ayam broiler yang dimarinasi menggunakan ekstrak buah nenas dengan lama penyimpanan yang berbeda pada suhu refrigerator (180C). Tahapan penelitian ini terdiri dari 2 tahapan yaitu tahap pertama pembuatan ekstrak buah nenas yang berasal dari buah nenas segar dan tahap kedua adalah proses marinasi dimana sampel daging ayam broiler dimarinasi dengan menggunakan ekstrak buah nenas dengan konsentrasi 30%. Rancangan percobaan yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) dengan satu faktor perlakuan (0 hari, 3 hari, 6 hari, 9 hari dan 12 hari) dengan masing-masing perlakuan diulang sebanyak 4 kali, sehingga diperoleh unit percobaan 5 x 4 = 20 unit percobaan. Analisis mikrobiologi yang diamati adalah analisis zona hambat dan Total Plate Count (TPC). Pemberian marinasi dengan ektrak buah nenas terhadap lama penyimpanan daging ayam berpengaruh nyata terhadap zona hambat. Zona hambat tertinggi 3,23 mm (selama 6 hari) sedangkan zona hambat terendah 2,21 mm (selama 0 hari). Pemberian marinasi ekstrak buah nenas terhadap lama penyimpanan daging ayam broiler berpengaruh nyata terhadap TPC. TPC tertinggi 2,29 (selama 12 hari) sedangkan TPC terendah 0,30 (selama 0 hari). Kata Kunci: Daging broiler; Ekstrak nanas; Kualitas mikrobiologi; Marinasi.


2022 ◽  
Vol 10 (1) ◽  
pp. 1-7
Author(s):  
A. D. Mulia ◽  
E. Taufik ◽  
A. Atabany

North Bandung Cattle Ranching Cooperative (KPSBU) Lembang is a single primary business cooperative that acts as a distributor of fresh milk produced by cows owned by its member breeders. The distribution of fresh milk from farmers to cooperatives is a movement of material flow from suppliers to factories known as inbound logistics. This study was aimed to analyze the inbound logistics performance of fresh milk at KPSBU Lembang, its value added for the farmer, as well as the nutritional and microbiological quality. SCOR-AHP was used to analyse inbound logistics performance. The Hayami method was used to analyse value added of fresh milk for the farmer. Fresh milk quality indicators were total solid, protein, fat, pH, specific gravity and total plate count. Obtained data were analyzed descriptively. The results showed that fresh milk inbound logistics performance at KPSBU Lembang was 92.77% (above average). The added value obtained by breeders based on concentrate input amounted to Rp. 8.464 per cow with a value-added ratio of 73.83%. The quality of fresh milk during inbound logistics fulfilled national standard SNI 3141.1.2011.


Author(s):  
Šárka Cupáková ◽  
Markéta Pospíšilová ◽  
Renáta Karpíšková ◽  
Bohumíra Janštová ◽  
Lenka Vorlová

In recent years, the popularity of goat’s milk and goat’s milk products has been growing in the Czech Republic, especially for its low allergenic potential and good digestibility. This study focused on the assessment of the microbiological quality and safety of raw and heat-treated goat’s milk. During the lactation period, total of 48 samples of raw and 40 samples of pasteurized goat’s milk were collected on a goat’s farm in the South Moravian Region of the Czech Republic. Quantitative analysis was performed to determine the total plate count (TPC) and coagulase-positive (CP) staphylococci count. The presence of E. coli including E. coli O157, CP staphylococci, B. cereus, L. monocytogenes, Salmonella spp., and Campylobacter spp. was detected. The monthly average TPC ranged from 4.53 to 5.21 log CFU.ml−1 in raw milk and from 2.36 to 3.71 log CFU.ml−1 in pasteurized milk. Thirty (75.0%) S. aureus isolates from raw milk carried the sec gene, two (5.0%) were positive for the genes seb, seg, sei, and one (2.5%) harboured the seg and sei genes. Pasteurized goat’s milk samples yielded a single isolate of S. aureus carriyng the sec gene. One isolate of E. coli serotype O156 producing ST1 toxin was recovered from raw milk. B. cereus was detected only in two pasteurized goat’s milk samples. Any other pathogens monitored were not detected. In this study, shigatoxin-producing E. coli O156 was detected in raw goat’s milk for the first time in the Czech Republic.


2021 ◽  
pp. 108201322110037
Author(s):  
Ercan Sarica ◽  
Hayri Coşkun

This study was aimed to determine the changes in kefir samples (CK and GK) made from cow’s and goat’s milk during frozen storage. The CK and GK samples were first stored at +4 °C for 14 and 21 days. Thereafter, all the samples were frozen at –35 °C for 24 h and kept at –18 °C for 45 days. There was no significant change in the fat, protein, acidity and pH values in both samples during the storage. The values of viscosity, WI and C* were higher in the CK samples while the syneresis value was higher in the GK samples throughout the frozen storage. The microorganisms ( Lactococcus spp., Lactobacillus spp., Leuconostoc spp., total mesophilic aerobic bacteria and yeasts) found in kefir made from goat's milk were more affected from the frozen storage. In both samples, the changes in organic acids and volatile flavor components were not significant during frozen storage, except acetic, citric and oxalic acids and acetaldehyde in GK sample. In addition, CK samples were preferred sensorially more by the panellists during frozen storage.


2022 ◽  
Vol 6 (6) ◽  
Author(s):  
Feren Feren ◽  
Sri Wahyuni ◽  
RH Fitri Faradilla

ABSTRACT The purpose of this study was to determine the interaction effect of storage time and concentration of plantain peel extract and lemongrass on organoleptic characteristics (color, aroma, texture, and elasticity) and total microbes in chicken meatballs. This study used a 2-Factorial Completely Randomized Design method. The first factor was storage time with three levels, namely 0 days (T0), 2 days (T1), and 4 days (T2. Meanwhile, the second factor was the concentration of plantain peel and lemongrass extract with three levels, namely 0% (C0), 30% plantain peel extract + 20% lemongrass extract (C1), 20% banana peel extract + 30% lemongrass extract (C2), and 25% banana peel extract + 25% lemongrass extract (C3). Observation variables were organoleptic tests which included color, aroma, texture, elasticity, and shelf life after treatment based on the results of the total plate count (TPC) calculation. The results show that the 2-day storage period with the addition of 25% plantain peel extract and 25% lemongrass extract (T1C3) was the best treatment for organoleptic characteristics (color, aroma, texture, and elasticity). Based on the results of the study, it can be concluded that the administration of plantain peel extract and lemongrass was able to maintain the quality of chicken meatballs for two different days compared to the control. Treatment with a storage period of 2 days with 25% plantain peel extract and 25% lemongrass extract (T1C3) was the best treatment that was most favored by the panelists and had the least number of microbial colonies.Keywords: Meatballs, preservatives, banana peel extract and lemongrass, storage time.ABSTRAKTujuan penelitian ini adalah untuk mengetahui pengaruh interaksi lama penyimpanan dan konsentrasi ekstrak kulit pisang raja dan serai terhadap uji organoleptik (warna, aroma, tekstur dan kekenyalan) dan total mikroba pada bakso ayam. Penelitian ini menggunakan metode Rancangan Acak Lengkap Faktorial 2 Faktor. Faktor Pertama adalah lama penyimpanan yang terdiri dari tiga taraf yaitu 0 hari (T0), 2 hari (T1) dan 4 hari (T2), faktor kedua yaitu perlakuan ekstrak kulit pisang raja yang terdiri atas tiga taraf yaitu konsentrasi 0% (C0), konsentrasi ekstrak kulit pisang raja 30% + konsentrasi ekstrak serai 20% (C1), konsentrasi ekstrak kulit pisang raja 20% + konsentrasi ekstrak serai 30% (C2), konsentrasi ekstrak kulit pisang raja 25% + konsentrasi serai 25% (C3). Variabel pengamatan yaitu uji organoleptik yang meliputi warna, aroma, tekstur, kekenyalan dan daya simpan setelah perlakuan berdasarkan hasil perhitungan jumlah total plate count (TPC). Hasil penelitian menunjukkan bahwa perlakuan lama penyimpanan 2 hari dengan penambahan ekstrak kulit pisang raja 25% dab serai 25% (T1C3) merupakan perlakuan terbaik untuk uji organoleptik (warna, aroma, tekstur dan kekenyalan). Berdasarkan hasil penelitian dapat disimpulkan bahwa pemberian ekstrak kulit pisang raja dan serai mampu mempertahankan kualitas bakso ayam selama dua hari yang berbeda dengan kontrol. Perlakuan dengan lama penyimpanan 2 hari dengan pemberianekstrak kulit pisang raja 25% dan serai 25% (T1C3) merupakan perlakuan terbaik yang paling disukai oleh panelis dan memiliki jumlah koloni mikroba paling sedikit.Kata kunci: Bakso, pengawet, ekstrak kulit pisang dan serai, lama penyimpanan


2020 ◽  
Vol 3 (1) ◽  
pp. 120
Author(s):  
Asman Asman ◽  
Kobajashi Togo Isamu ◽  
Suwarjoyowirayatno Suwarjoyowirayatno

Chemical and Microbiological Quality Characteristics of Dried Octopus (Octopus sp.) Marketed in North Konawe Regency Southeast Sulawesi ABSTRACT         The aim of this study was to determine the characteristics of chemical composition (water, ash, protein, fat, and carbohydrate) and total bacteria (TPC) of dried Octopus. Data analysis of this study used descriptive analysis. The sampling technique of this study are used simple random sampling and used the survey method. The results of the highest chemical composition of the treatment was found at water content  S1 19.89%, ash S3 13.63%, protein S2 46.99%, fat S3 5.82% and carbohydrate S2 10.19%.  The best Total Plate Count (TPC) result was found at S2 3.8 × 104 Cfu/g Keywords: Chemical Test, Octopus (Octopus sp.) Dry, and Total Plate Count (TPC).ABSTRAKTujuan penelitian ini adalah untuk mengetahui karakteristik komposisi kimia (kadar air, kadar abu, kadar protein, kadar lemak, dan kadar karbohidrat) dan total bakteri (TPC) terhadap gurita kering. Analisis data yang digunakan dalam penelitian ini yaitu menggunakan analisis deskriptif. Teknik sampling yang digunakan pada penelitian ini adalah simple random sampling. Metode yang digunakan pada penelitian ini yaitu metode survei. Hasil penelitian komposisi kimia perlakuan tertinggi kadar air terdapat pada S1 19.89%, kadar abu tertinggi terdapat pada perlakuan S3 13.63%, kadar protein perlakuan tertinggi terdapat pada S2 46.99%, kadar lemak perlakuan tertinggi terdapat pada  S3 5.82% dan kadar karbohidrat perlakuan tertinggi terdapat pada S2 10.19%. Hasil Uji Total Plate Count (TPC) terendah terdapat pada S2 3.8×104 Cfu/g.Kata kunci: Gurita (Octopus sp.) kering, Total Plate Count (TPC) dan Uji Kimia.


2012 ◽  
Vol 554-556 ◽  
pp. 1195-1201 ◽  
Author(s):  
Qian Liu ◽  
Rui Wang ◽  
Bao Hua Kong ◽  
Yong Gen Zhang

Food preservation is very important for the quality and safety of the meat and its product. In present study, the fresh beef were storaged in three different conditions, which including superchilling (-1 °C), chilled (4 °C) and frozen (-18 °C) preservation, respectively. The pH value, total plate count, thiobarbituric acid-reactive substances value (TBARS), total volatile basic nitrogen (TVB-N) and color were also determined. The result showed that after 8 days storage, the chilled beef decayed seriously, the frozen beef had no conspicuous changes, and the beef under supperchilling condition could extend the shelflife to 20 days and also maintained higher quality. To some extent, superchilling storage represent an advantage over traditional chilled and frozen storage, it is a good way to preserve freshness of fresh products and the raw material before processing, and also could have great effect on improving the quality characterizes of beef and prolong its shelf life.


2008 ◽  
pp. 67-75
Author(s):  
Ferenc Peles ◽  
Zsuzsa Máthéné Szigeti ◽  
Béla Béri ◽  
András Szabó

The importance of the quality of raw milk increased after Hungary had joined to the EU. On delivery of raw milk, the microbiological quality, especially total plate count of the milk is very important. Twenty-two farms (7 large, 4 medium-sized, and 11 small farms) were included in the study. We considered the different farm size, keeping- and milking circumstances during the selection of farms. The examined large farms use loose housing system (cubicle, deep litter) and milking parlour. Most of them use preand post-milking disinfection. In the medium-sized farms, loose,deep litter and tie-stall housing system, as well as milking parlour, pipeline milking and bucket milking occurred. All of them use preand post-milking disinfection. Small farms use tie-stall housing system, bucket milking and udder preparation by water. Unfortunately, they do not use pre- or post-milking disinfection. In the large and medium-sized farms mainly Holstein Friesian, in the small farms Hungarian Simmental breeds can be found.The aim of our research was to examine the microbiological status of the raw milk produced in dairy farms (total plate count, coliform count, Escherichia coli count, Staphylococcus aureus count, psychrotroph bacteria count, furthermore yeast and mold count); sources of the contamination; connection between the microbiological quality of produced milk and housing-, milking technologies of farms; furthermore the hygienic circumstances of milking and milk handling of the farms, by the examination of coliform bacteria and Escherichia coli contamination.During the examination of the connection between the different farm sizes, various housing- and milking forms and the microbiological characteristics we observed similar tendencies in the case of total plate count, coliform count, yeast and molds count, furthermore psychrotroph bacteria count. The value of  these parameters was significantly higher in small farms, and infarms which use tie-stall housing forms, bucket milking, udder preparation with water, and which do not use pre- and post-milking disinfection.The results showed that besides cooling, the milking procedure and the type of udder preparation had the largest effect on the total plate count. Statistical analysis shows that in medium and small farms the combination of pipeline milking – tie stall housing system – disinfectant preparation of the udder; in large farms the combination of milking parlour – loose cubicle housing system – dry preparation of the udder are the most appropriate in the aspect of the total plate count. We experienced that in farms where the hygienic instructions are not followed – and thereforeequipment used during the milking and handling of milk is very contaminated – or rather the separation of mastitic cows’ milk is not appropriate, different microorganisms may contaminate the produced milk. 


2021 ◽  
Vol 9 (2) ◽  
pp. 79-88
Author(s):  
A. Apriantini ◽  
D. Afriadi ◽  
N. Febriyani ◽  
I. I. Arief

Durian seeds are waste products from durian fruit that have not been utilized properly. Durian seedflour contain high starch as well as tapioca flour, therefore, durian seed flour can be combined withtapioca flour as a filler for sausage dough, in order to reduce production costs of sausage products. Theaim of this study was to analyze the physicochemical, microbiological and organoleptic properties of beefsausage with the addition of 0%, 25% and 50% durian seed flour from a maximum 30% of the flour usedin making sausages. The results of physical characteristics showed that the addition of durian seed flourhad a significant effect (P <0.05) on the cohesiveness of sausages and had no significant effect (P>0.05) onother physical characteristics of sausages. The microbiological assay showed that durian seed flour didnot affect the total plate count (TPC) of beef sausages. However, the total plate count of the sausages withthe addition of 25% durian seed flour still met the SNI (Indonesian National Standard) for sausages,instead of sausages with 50% durian seed flour addition. The results of chemical analysis showed that theaddition of durian seed flour had no affect on moisture content, ash content, fat content, protein content,and carbohydrate content of the sausages. The hedonic test values on the parameters of aroma, color,texture and general appearance also showed no significant effect (P> 0.05), except for taste parameters.The hedonic quality test value also showed that the addition of durian seed flour had no different effect(P> 0.05) on the parameters of aroma, color, texture, and general appearance, but had different effect (P<0.05) on the sausage taste. The addition of durian seed flour produced a distinctive taste which coverthe flavor of sausage.


2018 ◽  
Vol 21 (3) ◽  
pp. 543
Author(s):  
Imelda Krisanta Enda Savitri ◽  
Bernita Silaban ◽  
R.B.D. Sormin

Anchovies drying method in Saliong, Batuboi village, Kayeli Bay has been done by spreading fish on the ground covered by mat or net due to low cost and easy to apply. However, there are no guarantee in the sanitation and hygienic. The objective of this research was to study the effect of closed sun drying method on the quality of dried anchovies (Stolephorus sp). The method was using closed cabinet sun dryer prototype covered by transparence plastic multi racks. Parameters observed involve: organoleptic, moisture content, acid insoluble, total plate count (TPC), E. coli, Salmonella sp., Vibrio cholera and fungi according to Indonesian national standard reference (SNI). The result showed the dried anchovy have an organoleptic grade refers to appearance, smells and texture were 8.40, 8.33 and 8.27 respectively. Moreover, moisture 17.50%; acid insoluble ash 0.32%; total bacterial (TPC) 6.92x102; E. coli, Salmonella sp., V. cholera and fungi were negative. For comparison, dried anchovy produced by using conventional/traditional drying had an organoleptic grade refers to appearance, smells and texture were 7.67, 7.73 dan 7.87 respectively; while moisture 16.93% ; acid insoluble ash 0.65%; total bacterial (TPC) 1.16 x103; E. coli, Salmonella sp., V. cholera and fungi were negative. According to the SNI 01-2891 BSN 1992, dried anchovy produced by using enclosed sun dryer better than dried anchovy produced by traditional method.


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