scholarly journals Carcass Traits, Meat Quality, and Volatile Compounds of Lamb Meat from Different Restricted Grazing Time and Indoor Supplementary Feeding Systems

Foods ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2822
Author(s):  
Bo Wang ◽  
Zhenzhen Wang ◽  
Yong Chen ◽  
Xueliang Liu ◽  
Kun Liu ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Meat Quality ◽  
Carcass Traits ◽  
Cooking Loss ◽  
Supplementary Feeding ◽  
Volatile Flavor Compounds ◽  
Lamb Meat ◽  
Volatile Flavor ◽  
Similar Body ◽  
Feeding Systems

This study was conducted to investigate the carcass traits, meat quality, and volatile compounds of growing lambs under different restricted grazing time and indoor supplementary feeding systems. Fifty 3-month-old male Tan lambs (with similar body weight) were divided into five groups randomly according to grazing time 12 h/d (G12), 8 h/d(G8), 4 h/d(G4), 2 h/d (G2), and 0 h (G0, indoor supplementary feeding). Animals were slaughtered at the end of the experiment, and the longissimus thoracis (LT) samples were collected for further analysis. The results indicated that indoor supplementary feeding improved the percentages of carcass fat and non-carcass fat of pre-slaughter weight (PSW) and decreased the cooking loss of lamb meat. Grazing for 8 h/d or 2 h/d enhanced PSW, carcass, and meat percentages of PSW. Lambs grazing for 2 h/d with supplement and indoor supplementary feeding lambs had a higher level of intramuscular fat and lightness (L*) value and lower cooking loss in the LT muscle, but higher yellowness (b*) and fat content were found in indoor supplementary feeding lambs. More categories of volatile compounds were identified in meat from grazing lambs than from indoor supplementary feeding lambs, but lower content of aldehydes and total volatile flavor compounds was detected in grazing lambs. Overall, the results demonstrated that the feeding system is a main factor that affects lamb meat quality, and proper grazing time can improve the quantity and quality of lamb meat and provide meat with different flavors to the consumers.

scholarly journals Characterization of Volatile Compounds of Bulgur (Antep Type) Produced from Durum Wheat

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Saad Ibrahim Yousif ◽  
Mustafa Bayram ◽  
Songul Kesen
Keyword(s):  
Durum Wheat ◽  
Volatile Compounds ◽  
Solid Phase ◽  
Raw Materials ◽  
Production Method ◽  
Volatile Flavor Compounds ◽  
Volatile Flavor ◽  
Production Techniques ◽  
Gas Chromatography Mass Spectroscopy

Bulgur is enjoyed and rediscovered by many people as a stable food because of its color, flavor, aroma, texture, and nutritional and economical values. There is more than one type of bulgur overall the world according to production techniques and raw materials. The volatile compounds of bulgur have not been explored yet. In this study, Headspace Solid Phase Microextraction (HS-SPME) and Gas Chromatography–Mass Spectroscopy (GS-MS) methods were used to determine the volatile flavor compounds of bulgur (Antep type, produced from Durum wheat). Approaching studies were used and the results were optimized to determine the ideal conditions for the extraction and distinguish the compounds responsible for the flavor of bulgur. Approximately, 47 and 37 important volatile compounds were determined for Durum wheat and bulgur, respectively. The study showed that there was a great diversity of volatiles in bulgur produced using Durum wheat and Antep type production method. These can lead to a better understanding of the combination of compounds that give a unique flavor with more researches.

Carcass Traits and Meat Quality Characteristics of Malabari Male Kids Reared under Different Production System

2020 ◽  
Author(s):  
Chikkagoudara Kotresh Prasad ◽  
John Abraham ◽  
Balusami Chinnappan ◽  
Roshin Anie Jose ◽  
Senthil Murugan ◽  
...  
Keyword(s):  
Body Weight ◽  
Meat Quality ◽  
Production System ◽  
Carcass Traits ◽  
Live Weight ◽  
Quality Characteristics ◽  
Cooking Loss ◽  
Body Parts ◽  
Final Body Weight ◽  
The Impact

Background: The intensive rearing systems of goats needs dietary formulations that will meet animal requirements, mainly the protein and energy to allow optimum growth rate. Alternative systems to attain 15-20 kg body weight by three months of age with better meat quality is need of the hour. Broiler goat production system is most suitable system of rearing for meat goat production. The current study was conducted to examine the impact of broiler goat production system on the carcass traits and meat quality characteristics of Malabari male kids. Methods: Fourteen pre-weaned kids were randomly allotted to two treatments. Treatment-I (T1) kids were allowed to suckle thrice a day during four weeks and twice in a day during consequent weeks. Whereas in Treatment-II (T2), kids were reared intensively by providing finely ground concentrate feed mixed with equal quantity of rice gruel from a feeding bottle after 7 days of colostrum feeding from the mother. The animals were slaughtered at an age of three months and the final body weight, carcass traits like dressing percentage, weight of different body parts and meat quality parameters like pH, color, cooking loss and shear force were analysed. The proximate composition and sensory evaluation was performed. Result: Broiler goat production system could produce significantly (P less than 0.01) higher final average body weight compared to natural system. All the carcass traits were significantly (P less than 0.01) higher in T2. The broiler goat production system could double the net live weight during the same period compared to natural suckling system with higher dressing % and the chevon produced was tender with less cooking loss. Hence, this system can be recommended for chevon production in shorter period with higher dressing % and lesser cooking loss in Malabari male kids.

Effect of rearing system on some meat quality traits and volatile compounds of suckling lamb meat

2008 ◽  
Vol 78 (1-3) ◽  
pp. 1-12 ◽  
Author(s):  
María Teresa Osorio ◽  
José María Zumalacárregui ◽  
Enrique Alfonso Cabeza ◽  
Ana Figueira ◽  
Javier Mateo
Keyword(s):  
Volatile Compounds ◽  
Meat Quality ◽  
Quality Traits ◽  
Meat Quality Traits ◽  
Lamb Meat

Effects of crossbred ewe genotype and ram genotype on lamb meat quality from the lowland sheep flock

2002 ◽  
Vol 139 (2) ◽  
pp. 195-204 ◽  
Author(s):  
L. E. R. DAWSON ◽  
A. F. CARSON ◽  
B. W. MOSS
Keyword(s):  
Meat Quality ◽  
Shear Force ◽  
Live Weight ◽  
Growth Index ◽  
Gluteus Medius ◽  
Quality Parameters ◽  
Cooking Loss ◽  
Lamb Meat ◽  
Hue Angle ◽  
The Relationship

A study was carried out on five lowland farms in Northern Ireland over 2 years to investigate the effects of crossbred ewe and ram genotype on lamb meat quality. Four ewe genotypes were sourced from six hill farms – Bluefaced Leicester×Blackface (BLXB), Texel×Blackface (TXB), Suffolk×Cheviot (SXCH) and Texel×Cheviot (TXCH). On each farm groups of 20–30 of each crossbred ewe genotype were crossed with Suffolk or Texel sires. Within each of the ram breeds, high lean growth index rams sourced from UK sire reference schemes (SRS) were compared with rams sourced from flocks not involved in objective genetic improvement programmes (control). Throughout the 2 years of the study the ewes lambed at 1 and 2 years of age. Lambs from each of the crosses were slaughtered at 36, 44 and 52 kg live weight. Meat from lambs slaughtered at 36 kg had lower a* values (15.1) than meat from lambs slaughtered at 52 kg (17.0 S.E. 0.47) (P<0.05). Ewe genotype had no effect on any parameter of meat quality measured. The carcasses of lambs sired by Suffolk rams had a higher pHU than lambs sired by Texel rams (5.70 v. 5.65; S.E. 0.014; P<0.05) and hue angle was lower (P<0.05) in Suffolk-sired lambs (32.9°) compared with Texel-sired lambs (35.1°) (S.E. 0.62°). Warner–Bratzler shear force was lower in SRS-sired lambs (2.05 kg/cm2) compared with control-sired lambs (2.36 (S.E. 0.096) kg/cm2; P<0.05). Carcasses from male lambs had a greater cooking loss (217 g/kg) than from female lambs (196 S.E. 5.7 g/kg) (P<0.01) and meat from male lambs had greater values for Warner–Bratzler shear force (2.44 kg/cm2) than from female lambs (1.97 S.E. 0.098 kg/cm2) (P<0.001). Low, but statistically significant (P<0.05) correlations were obtained between carcass fat measurements and meat quality parameters (r = −0.29 for the relationship between cooking loss and fat depth over the gluteus mediusP<0.001); r = 0.21 for the relationship between fat classification and C* values P<0.01). When meat quality parameters for each of the fat classes were averaged, significant linear regressions (P<0.05) were obtained between fat classification and pHU, a* and C* values.

scholarly journals Comparative Analysis and Development of a Flavor Fingerprint for Volatile Compounds of Vegetable Soybean Seeds Based on Headspace-Gas Chromatography-Ion Mobility Spectrometry

2021 ◽  
Vol 12 ◽  
Author(s):  
Fengjie Yuan ◽  
Xujun Fu ◽  
Xiaomin Yu ◽  
Qinghua Yang ◽  
Hangxia Jin ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Ion Mobility ◽  
Flavor Compounds ◽  
Soybean Seeds ◽  
Headspace Gas Chromatography ◽  
Vegetable Soybean ◽  
Volatile Flavor Compounds ◽  
The Core ◽  
Volatile Flavor ◽  
Headspace Gas

Evaluating the volatile compounds and characteristic fingerprints of the core cultivars of vegetable soybean would provide useful data for improving their aroma in the breeding programs. The present study used headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS) to evaluate the volatile compounds of vegetable soybean seeds at a specific growth stage. In total, 93 signal peaks were identified, 63 compounds qualitatively, with 14 volatile flavor compounds providing multiple signals. The 63 volatile compounds consisted of 15 esters, 15 aldehydes, 13 alcohols, 15 ketones, one acid, and four other compounds. The peak intensity of most of the volatile compounds varied greatly between the core cultivars. The alcohols and aldehydes determined the basic volatile flavor of the vegetable soybean seeds. Volatile flavors were determined by their respective esters, ketones, or other components. Characteristic fingerprints were found in some core vegetable soybean cultivars. Four cultivars (Xiangdou, ZHE1754, Zhexian 65018-33, and Qvxian No. 1) had pleasant aromas, because of their higher content of 2-acetyl-1-pyrroline (2-AP). A principal component analysis (PCA) was used to distinguish the samples based on the signal intensity of their volatile components. The results showed that the composition and concentration of volatile compounds differed greatly between the core cultivars, with the volatile flavor compounds of soybeans being determined by the ecotype of the cultivar, the direction of breeding selection, and their geographical origin. Characteristic fingerprints of the cultivars were established by HS-GC-IMS, enabling them to be used to describe and distinguish cultivars and their offspring in future breeding studies.

Interactions of Fish Proteins and Volatile Flavor Compounds: Mechanisms, Affecting Factors and Analytical Methods

2020 ◽  
Vol 17 ◽  
Author(s):  
Jianyou Zhang ◽  
Lifan Chen ◽  
Zhiming Chen ◽  
Zhen Wang ◽  
Fei Lu ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Affecting Factors ◽  
Fishy Odor ◽  
Research Attention ◽  
Factors Affecting ◽  
Volatile Flavor Compounds ◽  
Volatile Flavor ◽  
Combination Modes ◽  
Fish Proteins ◽  
Production Industry

: The removal of volatile compounds with unfavorable fishy odor from fish has attracted considerable research attention especially in surimi production industry. The binding of these volatile compounds by fish proteins are reported to affect the deodorization of fishy odor. To remove the protein-bound fishy substances effectively, the mechanisms underlying the interaction between proteins and flavor substances and methods that can extract and analyze the aromatic substances have been extensively studied. This paper briefly reviews the typical fishy compounds and the combination modes and mechanisms of fish proteins with these compounds. Moreover, factors affecting the interactions including protein conformation and solution conditions are discussed in detail.

scholarly journals Swiss Cheese Flavor Variability Based on Correlations of Volatile Flavor Compounds, Descriptive Sensory Attributes, and Consumer Preference

Foods ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 78 ◽  
Author(s):  
Hardy Castada ◽  
Kaitlyn Hanas ◽  
Sheryl Barringer
Keyword(s):  
Volatile Compounds ◽  
Consumer Preference ◽  
Sensory Attributes ◽  
Flavor Compounds ◽  
Swiss Cheese ◽  
Ethyl Hexanoate ◽  
Volatile Flavor Compounds ◽  
Volatile Flavor ◽  
Cheese Flavor ◽  
Selected Ion Flow Tube

Minimizing flavor variation in cheeses without perceived flavor defects in order to produce a consistent product is a challenge in the Swiss cheese industry. This study evaluated flavor variability based on correlations of volatile flavor compounds and sensory attributes. The headspace concentrations of volatile compounds were analyzed using selected ion flow tube-mass spectrometry (SIFT-MS), while the sensory attributes were evaluated using descriptive sensory analysis and consumer testing. The important discriminating volatile compounds were classified into five functional groups: sulfur-containing compounds (methyl mercaptan, hydrogen sulfide, dimethyl disulfide, dimethyl trisulfide, and methional), organic acids (propanoic acid, acetic acid, 3-methylbutanoic acid), aldehydes (3-methylbutanal, butanal, and 2-methylpropanal), a ketone (2,3-butanedione), and an ester (ethyl hexanoate). Correlations were identified among volatile compounds and between volatile compounds and sensory attributes. Only a small number of volatile compounds strongly correlated positively or negatively to a specific sensory attribute. Nutty malty, milkfat lactone, salty, umami, and sweet positively correlated to overall liking and nutty flavor liking of Swiss cheese. Evaluation of cheese flavor using correlations between volatile compounds and sensory attributes provided further understanding of the complexity of flavor and flavor variability among Swiss cheeses manufactured from different factories that can be used to improve flavor consistency of Swiss cheeses.

scholarly journals Fresh and matured lamb meat quality fed with sunflower seeds and vitamin E

2013 ◽  
Vol 43 (1) ◽  
pp. 151-157 ◽  
Author(s):  
Ronaldo Oliveira Sales ◽  
Américo Garcia da Silva Sobrinho ◽  
Nivea Maria Brancacci Lopes Zeola ◽  
Natália Ludmila Lins Lima ◽  
Gabriela Milani Manzi ◽  
...  
Keyword(s):  
Vitamin E ◽  
Meat Quality ◽  
Sunflower Seed ◽  
Shear Force ◽  
Cooking Loss ◽  
Water Holding Capacity ◽  
Sunflower Seeds ◽  
Longissimus Dorsi Muscle ◽  
Lamb Meat ◽  
Water Holding

The objective of the study is to evaluate meat quality from Ile de France lamb fed diets supplemented with sunflower seeds and vitamin E. Thirty-two lamb weighing initially 15kg were housed in individual stalls and slaughtered when body weight reached 32kg. The treatments consisted of four experimental diets: D1) sugarcane + concentrate without sunflower seeds; D2) sugarcane + concentrate with sunflower seeds; D3) sugarcane + concentrate without sunflower seeds plus 1000mg vitamin E kg-1 diet dry matter (DM); and D4) sugarcane + concentrate with sunflower seeds and 1000mg vitamin E kg-1 diet DM. The parameters temperature, pH, color, cooking loss, shear force and water holding capacity were determined at maturation times of 0, 7 and 14 days on the Longissimus dorsi muscle. Qualitative characteristics of the meat were not affected by the sunflower seed combined with vitamin E diet; however, pH 24 hours was affected (P<0.05) by the sunflower seed combined with vitamin E diet. Cooking loss was not significantly influenced (P>0.05) by diet or maturation times. On the other hand, shear force and water holding capacity were significantly affected (P<0.05) by the treatments. The use of vitamin E resulted in lamb meat with higher water holding capacity. Maturation time influenced the parameters pH, color and shear force. Lamb meat that matured for 7 days displayed the lowest shear force.

scholarly journals Influence of Electrostatic Field on the Quality Attributes and Volatile Flavor Compounds of Dry-Cured Beef during Chill Storage

Foods ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 478
Author(s):  
Chen-Chen Xu ◽  
Hui Yu ◽  
Peng Xie ◽  
Bao-Zhong Sun ◽  
Xiang-Yuan Wang ◽  
...  
Keyword(s):  
Moisture Content ◽  
Volatile Compounds ◽  
Electrostatic Field ◽  
Principal Component ◽  
Color Stability ◽  
Storage Condition ◽  
Volatile Flavor Compounds ◽  
Volatile Flavor ◽  
Cured Meat ◽  
Storage Times

The purpose was to investigate the quality characteristics of dry-cured beef with different storage times under a high-voltage electrostatic field (HVEF) condition. The pH, moisture content, meat color, and volatile compounds of dry-cured beef samples treated with HVEF (3 kV) were compared with those of a common refrigerator (CON) at days 0, 3, 7, 10, and 14. The results showed that, compared with CON group, the decline rates of the pH and moisture content of beef and ∆E values were lower under HVEF storage condition. From the fingerprints, the 42 volatile compounds identified were mainly aldehydes, alcohols, ketones, and esters. The benzaldehyde, trimethyl pyrazine, and maltol contents in the HVEF group exhibited a dramatic increase after 10 days of storage. Principal component analysis revealed clustering of compound classes, distributed in a separate time. Based on the above findings, we concluded that HVEF treatment could promote color stability and enhance characteristic flavor during the storage of dry-cured beef. These results suggested that HVEF might be applicable for dry-cured meat storage techniques.

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