scholarly journals Application of plant proteolytic enzymes for tenderization of rabbit meat

2018 ◽  
Vol 34 (2) ◽  
pp. 229-238 ◽  
Author(s):  
Maria Doneva ◽  
Iliana Nacheva ◽  
Svetla Dyankova ◽  
Petya Metodieva ◽  
Daniela Miteva
Keyword(s):  
Proteolytic Enzymes ◽  
Raw Materials ◽  
Electrophoretic Pattern ◽  
Physicochemical Characteristics ◽  
Water Holding Capacity ◽  
Rabbit Meat ◽  
Vegetable Raw Materials ◽  
Meat Samples ◽  
Water Holding ◽  
Control Samples

The purpose of this study is to assess the tenderizing effect of plant proteolytic enzymes upon raw rabbit meat. Tests are performed on rabbit meat samples treated with papain and two vegetal sources of natural proteases (extracts of kiwifruit and ginger root). Two variants of marinade solutions are prepared from each vegetable raw materials- 50% (w/w) and 100 % (w/w), with a duration of processing 2h, 24h, and 48h. Changes in the following physicochemical characteristics of meat have been observed: pH, water-holding capacity, cooking losses and quantity of free amino acids. Differences in values of these characteristics have been observed, both between control and test samples, as well as depending of treatment duration. For meat samples marinated with papain and ginger extracts, the water-holding capacity reached to 6.74 ? 0.04 % (papain), 5.58 ? 0.09 % (variant 1) and 6.80 ? 0.11 % (variant 2) after 48 hours treatment. In rabbit meat marinated with kiwifruit extracts, a significant increase in WHC was observed at 48 hours, 3.37 ? 0.07 (variant 3) and 6.84 ? 0.11 (variant 4). The test samples also have reduced cooking losses compared to control samples. In control samples, cooking loss is increased from 13.79% (2 h) to 20.78 % (48 h). SDS-PAGE of meat samples after 48 h of treatment shows a reduction in the intensity of actin and myosin bands in all variants with papain and vegetal extracts. Electrophoretic pattern of test samples depicts proteolysis and degradation of muscle proteins.

scholarly journals Determination of Chemical Content and some Physical Properties and Meat Pigments (Myoglobin, Meta Myoglobin and Oxymyoglobin) in Different Parts of Slaughtered Animals

2019 ◽  
Vol 32 ◽  
pp. 302-319
Author(s):  
Khadeeja S.J. Al-Husseiny ◽  
Maryam T. Khrebish
Keyword(s):  
The Body ◽  
Water Holding Capacity ◽  
Fresh Meat ◽  
Ph Values ◽  
Significant Difference ◽  
Chemical Content ◽  
Meat Samples ◽  
Water Holding ◽  
Different Parts

The current study aimed to estimate the pigments of some muscles parts taken from cows, sheep and chicken (thigh, chest and back). The chemical content including moisture, protein, lipids and ash, as well as the pH and the water holding capacity have been evaluated. Results showed that the moisture differed among three animals with high percentage of moisture, ash and lipid in back in compared with other parts of cows. while significant difference in the percentage of ash of back with other parts and in protein in chest with other parts of sheep. The significant differences were recorded in percentage of ash of three parts of chicken, also significant differences between chest and back. The water holding capacity of fresh meat samples taken from thigh, chest and back of cows, sheep and chicken significantly differ among samples. pH values which reflect a confect in water holding capacity of meat samples taken from different parts of the body and from different animal. In addition, there was a significant differences in the percentage of the presences of myoglobin, metmyoglobin and oxymyoglobin in different samples taken from different parts of the slaughtered animals.

Physicochemical Characteristics and Water-holding Capacity of Bamboo Shoot Peel Extracts

2019 ◽  
Vol 24 (3) ◽  
pp. 153-164
Author(s):  
Eui-seon Jeong ◽  
Ki Hoon Lee ◽  
Jin seok Kim ◽  
Young Su Park ◽  
Se Hwan Kwon ◽  
...  
Keyword(s):  
Physicochemical Characteristics ◽  
Water Holding Capacity ◽  
Bamboo Shoot ◽  
Water Holding

scholarly journals Comparative evaluation of quality and composition of ostrich, turkey and broiler meat

2012 ◽  
Vol 28 (2) ◽  
pp. 385-392 ◽  
Author(s):  
V. Jukna ◽  
J. Klementaviciūtė ◽  
E. Meskinytė-Kausilienė ◽  
N. Peciulaitienė ◽  
M. Samborskytė ◽  
...  
Keyword(s):  
Meat Quality ◽  
Comparative Evaluation ◽  
Cholesterol Content ◽  
Water Holding Capacity ◽  
Nutritional Properties ◽  
Broiler Meat ◽  
Turkey Meat ◽  
Meat Samples ◽  
Water Holding

In this article are presented research data on comparative evaluation of meat quality of various poultry species. The study was made on 5 samples of ostrich, turkey and broiler meat. Samples were weighed 500 to 550 grams. Qualitative and nutritional properties of meat from different species of poultry were estimated. The chemical composition, pH, color, firmness, water holding capacity, cooking loss, drip loss of ostrich, turkey and broiler meat were analyzed. Meat quality studies were carried out according to generally accepted methodologies. Analyses have shown that the highest fat content was in the broiler meat (p <0.001). Ostrich, turkey and broiler meat acidity values were very similar, slightly more distinct in turkey meat (p <0.01). The lowest water holding capacity was established in ostrich, the highest in turkey meat (p <0.01). Comparison in regard to meat firmness, it was observed on the ostrich meat had the highest firmness (p <0.01). Also, the highest cholesterol content was established in the ostrich meat.

scholarly journals Sensory and Physicochemical Characteristics of Manyung (Arius thalassinus) Kekian High Fiber with the Addition of Eucheuma cottonii Seaweed

2020 ◽  
Vol 36 (1) ◽  
pp. 1
Author(s):  
Meisya Asri Widiyanti ◽  
Lukita Purnamayati ◽  
Romadhon Romadhon
Keyword(s):  
Protein Content ◽  
Water Content ◽  
Dietary Fiber ◽  
Quality Criteria ◽  
Physicochemical Characteristics ◽  
Gel Strength ◽  
Water Holding Capacity ◽  
High Fiber ◽  
Water Holding ◽  
Eucheuma Cottonii

Kekian is a processed product from fish meat added with seasoning, fillers and binders then formed and wrapped with tofu skin. Kekian has a low dietary fiber so that the addition of seaweed porridge can be used to increase the content of dietary fiber in kekian. The purpose of this study was to determine the effect of adding different seaweed porridge (Eucheuma cottonii) to characteristics of manyung (Arius thalassinus) kekian and determine the best seaweed porridge to the best kekian fish characteristics. The research method used was experimental laboratories using a completely randomized design of one factor is concentration of the addition of porridge (0%, 20%, 30% and 40%) with 3 replications. Sensory value data were analyzed by the Kruskal-Wallis test, while tests of dietary fiber, air content, protein content, water holding capacity and gel strength were analyzed using ANOVA. The results showed that the difference in the addition of seaweed porridge had a significant effect (P <0.05) on sensory values, dietary fiber, water content, protein content, water holding capacity and gel strength. Manyung kekian with the addition of E. cottonii porridge 20% is the best product with quality criteria: sensory of 7.61 <µ <7.86, dietary fiber of 6.03%, water content of 69.31%, protein content by 11.49%, Water Holding Capacity by 39.69% and gel strength by 773.82 kgf.

scholarly journals Water-holding capacity, colour stability and sensory characteristics in meat (M. longissimus dorsi) from reindeer fed two different commercial feeds

Rangifer ◽  
2011 ◽  
Vol 31 (1) ◽  
pp. 49-59 ◽  
Author(s):  
Eva Wiklund ◽  
Lisbeth Johansson
Keyword(s):  
Sensory Evaluation ◽  
Water Holding Capacity ◽  
Longissimus Dorsi ◽  
Colour Stability ◽  
Treatment Groups ◽  
Meat Colour ◽  
Meat Samples ◽  
The Right ◽  
Storage Times ◽  
Water Holding

Twenty reindeer calves (age 10 months) were included in the study. They were all fed one of two different pelleted feed mixtures ad libitum for two months before slaughter. Ten calves were fed a control diet of conventional pellets (CPD) (Renfor Bas, Lantmännen, Holmsund, Sweden) and ten calves received pellets enriched with linseed cake (LPD). The reindeer were slaughtered according to standard procedure at Arvidsjaur Renslakt AB, a reindeer slaughter plant in Arvidsjaur, Sweden. At 1 day post mortem, both longissimus dorsi (LD) muscles from each carcass were excised. The left LD was used for sensory evaluation and the right LD for colour and water-holding capacity measurements. The right LD was cut in 4 pieces that were randomly allocated to storage times of 1 day, 1, 2, or 3 weeks at + 4 °C. Samples allocated for storage were vacuum packaged. Evaluation of meat colour was carried out after each of the four storage times while drip loss/purge was registered after 1, 2, and 3 weeks storage at + 4 °C. The left LD muscles were vacuum packaged, frozen at -20 °C and kept frozen until preparation for sensory evaluation. No significant differences were found in carcass quality (carcass weight, EUROP carcass conformation and fat scores), meat colour stability and water-holding capacity of LD samples when comparing the two treatment groups LPD and CPD. However, sensory panellists judged samples from LPD fed reindeer to have a tendency (not significant) to be more tender (P= 0.06) and juicy (P=0.07) than the meat samples from CPD fed reindeer. No flavour differences were found when comparing meat samples from the two treatment groups.

scholarly journals Carcass traits and meat quality of lamb fed on ration containing different levels of leucaena hay (Leucaena leucocephala L.)

2008 ◽  
Vol 24 (3-4) ◽  
pp. 77-92 ◽  
Author(s):  
Abd El-Aal ◽  
A.I.A. Suliman
Keyword(s):  
Body Weight ◽  
Carcass Traits ◽  
Cooking Loss ◽  
Water Holding Capacity ◽  
Live Body Weight ◽  
Four Levels ◽  
Meat Samples ◽  
Cooked Meat ◽  
Water Holding

Twenty growing crossbred male lambs (? chios. ? ossimi and ? chios. ? ossimi) of 15.25 ? 2.00 kg initial average body weight and three months old were divided into four groups. All groups were fed on concentrate feed mixture plus 1% of live body weight wheat straw for 169 days. Four levels (zero, 200g, 400g and 600g) of leucaena hay were used. Final weight and carcass traits were evaluated. Color (L, a, b), proximate composition, pH, acidity, expressible water, water holding capacity, cooking loss, amino acid and minerals contents of meat were determined. Sensory evaluation of cooked meat was also evaluated. The results revealed that, Hindquarter, shoulder, and sets weight were significantly (p ? 0.05) different. Moisture, protein, fat and ash content of fresh meat were ranged from 73.72 to 76.23%, 20.06 to 20.80 %, 2.41 to 4.12% and 1.01 to 1.08%, respectively. Expressible water, water holding capacity and pH were significantly (p ? 0.05) different. No significant (p ? 0.05) differences were found in color (L, a, b), acidity and cooking loss of meat. Amino acids and minerals contents of all meat samples were varied. Cooked meat of group four had the highest scores of tenderness, juiciness, flavor and over all acceptability 4.6, 4.5, 4.4 and 4.5, respectively. This study suggested that the leucaena hay is suitable for lamb feeding. Produced lamb meat had high chemical and sensory quality.

scholarly journals The effect of raw pearl millet flour inclusion on the quality and formulation cost of beef sausages

10.5219/1658 ◽  
2021 ◽  
Vol 15 ◽  
pp. 1039-1048
Author(s):  
Frederick Adzitey ◽  
Joseph Yaro ◽  
Joseph Kudadam Korese ◽  
Mohammad Halim Jeinie ◽  
Nurul Huda
Keyword(s):  
Mineral Composition ◽  
Pearl Millet ◽  
Peroxide Value ◽  
Physicochemical Characteristics ◽  
Sensory Properties ◽  
Cooking Loss ◽  
Water Holding Capacity ◽  
Production Costs ◽  
Calcium Magnesium ◽  
Water Holding

This study investigated the sensory, nutritional, and physicochemical characteristics as well as formulation cost of beef sausages formulated with raw pearl millet flour (RaPMF) as an extender. Four treatments were formulated with 0%, 5%, 10% and 15% RaPMF. Ash, carbohydrate, fat, and protein contents of the beef sausages were not influenced (p <0.05) by the RaPMF. The calcium, magnesium, potassium, and pH contents were highest (p <0.05) in the 15% RaPMF beef sausages. Cooking loss was at least (p <0.05) for the 15% RaPMF beef sausages. Formulation of beef sausages with RaPMF did not affect (p >0.05) the sensory properties (week 1), water holding capacity, peroxide value, lightness (week 1), and yellowness (week 1). The formulation cost was least for 15% RaPMF beef sausages and highest for 0% RaPMF beef sausages. As a general conclusion, RaPMF improved the mineral composition of the beef sausages and reduced production costs without compromising its physicochemical and sensory properties.

Correlation between some quality parameters and bleeding status of poultry meat

2015 ◽  
Vol 34 (4) ◽  
Author(s):  
Tanbir Ahmad ◽  
Yogesh Kumar ◽  
Nilesh Gaikwad ◽  
Deepak Raj Rai
Keyword(s):  
Malachite Green ◽  
Traditional Method ◽  
Quality Parameters ◽  
Water Holding Capacity ◽  
Poultry Meat ◽  
Meat Sample ◽  
Retail Meat ◽  
The Mean ◽  
Meat Samples ◽  
Water Holding

A study was undertaken to investigate the effect of two different slaughter methods <italic>i.e</italic> traditional method (unilateral neck cut) and decapitation on the colour, pH, total heme pigments (THP) and water holding capacity (WHC) of the poultry meat. Fresh drumsticks (30 from conventionally slaughtered and 30 from slaughtered by decapitation method) of broiler birds (6 weeks of age; 2 hrs postmortem) were procured from retail meat shops located in different regions of the Ludhiana, Punjab, India. <italic>L*</italic> value (53.55) of conventionally slaughtered meat samples was significantly (P<0.01) higher than the decapitation method (47.97) but <italic>a*</italic> and <italic>b*</italic> values for conventionally slaughtered samples (7.86 and 12.62, respectively) were significantly (P<0.01) lower than the decapitated samples (11.42 and 15.90, respectively). These effects were due to the fact that the decapitated birds lost the least amount of blood compared to the conventionally slaughtered birds. pH of the conventionally slaughtered meat samples (6.02) were significantly (P<0.01) lower than the decapitated meat samples (6.32). The mean total heme pigments were significantly (P<0.01) higher in decapitated meat samples (2.20 mg/gm of meat sample) than the conventionally slaughtered meat samples (1.84 mg/gm of meat sample). Similarly WHC was significantly (P<0.01) higher of decapitated meat samples (52.91%) than the conventionally slaughtered meat samples (43.18%). Malachite Green test in 86.36% conventionally slaughtered meat samples showed perfect bleeding and 100% decapitated meat samples showed imperfect bleeding.

scholarly journals Solar Drying and Sensory Attributes of Eland (Taurotragus oryx) Jerky

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Iva Kučerová ◽  
Štěpán Marek ◽  
Jan Banout
Keyword(s):  
Physicochemical Characteristics ◽  
Fat Content ◽  
Matter Content ◽  
Water Holding Capacity ◽  
Pigment Concentration ◽  
Dry Matter Content ◽  
Double Pass ◽  
Thin Layer Drying ◽  
Total Difference ◽  
Water Holding

A double-pass solar drier (DPSD) and a laboratory oven (LO) were used for thin-layer drying of eland and beef. Prior to drying, the physicochemical characteristics of the raw meat were determined, such as pH, dry matter content (%), Warner-Bratzler shear force (N), pigment concentration (mg·kg−1), weight loss during cooking (%), water holding capacity (%), colour (L,a,b), and crude fat content (%). Both meats were pretreated with traditional jerky marinade (TM), TM with fresh pineapple juice (TMP), TM with honey (TMH), and TM with Coca Cola© (TMCCL) and compared to an untreated control (C). The sensory properties of the eland and beef jerky were assessed in a two-stage process. The surface colour values of the jerky samples were measured in the CIE L⁎  a⁎  b⁎ colour space and the effect of the different pretreatments on the overall combined colour (ΔE) was calculated. Significant differences (p<0.05) between raw eland and beef samples were found in case of pH, pigment concentration, water holding capacity, crude fat content, and colour (L and b). Jerky from TMP pretreated meat had the highest scores for texture, colour, and taste. Generally, for both meats dried in both driers, TMH marinade was evaluated as the one with the highest total difference ΔE compared to meat dipped in TMP pretreatment, which had the lowest total difference ΔE.

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