scholarly journals Effect of tomato (Lycopersicon esculentum) powder on oxidative stability and sensory characteristics of broiler meat

2012 ◽  
Vol 12 (54) ◽  
pp. 6794-6808
Author(s):  
KD Adeyemi ◽  
◽  
AO Olorunsanya ◽  
Keyword(s):  
Lipid Oxidation ◽  
Oxidative Stability ◽  
Positive Control ◽  
Sensory Characteristics ◽  
Broiler Meat ◽  
Raw Meat ◽  
Antioxidant Potency ◽  
Tbars Values ◽  
Meat Samples ◽  
Tomato Powder

Antioxidant potency of graded levels of tomato powder in cooked and raw broiler meat under refrigerated storage was evaluated and compared with that of Butylated Hydroxyl Anisole (BHA), a synthetic antioxidant. To a separate 200g of minced broiler meat, 0% (control), 0.5%, 1% and 1.5% of tomato powder were applied. A positive control was prepared with 0.15% of BHA in a separate 200g of minced broiler meat. Each sample was divided into 16 parts of 12.5g each. Eight of these were cooked in a microwave oven for 11/2 minutes while the other eight parts were left raw. The samples were packaged in different nylon bags, with labeling corresponding to the treatment applied and then stored in a refrigerator at 40C. Oxidative stability of the cooked samples was monitored for 6 days at two-day intervals while that of raw samples was monitored for 9 days at three-day intervals. A forty-member team was constituted to form the taste panel and was instructed on the parameters to adjudge using a five point Hedonic scale. The result showed that all additives and BHA reduced lipid oxidation in broiler meat. This was shown by lower TBARS values in meat samples with additives compared to meat samples without additive. There were significant differences (P<0.05) in the TBARS values of cooked and raw meat samples. There was a general increase in lipid oxidation as storage day progress. However, the increment was more pronounced in cooked meat samples than the raw meat samples. The result revealed that 0.5% and 1.5% tomato powder exhibited higher antioxidant potency (P<0.05) than BHA in the cooked and raw samples respectively. The control samples were the most susceptible to lipid oxidation. Sensory scores revealed that all levels of tomato powder improved the color, flavor, juiciness, tenderness and overall acceptability of broiler meat. Tomato powder could therefore, be used as a cheap, readily available and safe source of natural antioxidant to protect broiler meat from lipid oxidation and improve its sensory characteristics.

RESEARCH OF SENSORY CHARACTERISTICS OF POULTRY MEAT OBTAINED USING VARIOUS METHODS OF STUN

2020 ◽  
Author(s):  
Д.Б. ШАЛГИНБАЕВ ◽  
Р.У. УАЖАНОВА ◽  
Л.В. АНТИПОВА
Keyword(s):  
Optical Resolution ◽  
Sensory Characteristics ◽  
Poultry Meat ◽  
Test Material ◽  
Quantitative Composition ◽  
Meat Sample ◽  
Broiler Meat ◽  
Aroma Characteristics ◽  
Manometric Method ◽  
Meat Samples

Исследованы цветовые и ароматические характеристики мяса бройлеров, полученного оглушением птицы углекислым газом и электрическим способом. Объектом исследования были образцы мяса бройлеров, произведенного в Казахстане электрооглушением – образец 1; и в РФ: газовым оглушением – образец 2; электрооглушением – образец 3. Каждый из образцов был представлен мясом из 2 частей тушки: бедра и грудки. Образцы мяса сканировали в цветовом режиме TrueCоlоr, оптическое разрешение 300 dpi, размер не менее 500 ґ 500 pix. Цифровое изображение обрабатывали с помощью программы ImаgeJ 1.46. Численные характеристики окраски исследованных образцов мяса птицы определяли сканерометрическим методом с использованием планшетного сканера. Изображения обрабатывали на компьютере в режиме RGB. Исследование запаха мяса проводили на анализаторе запахов МАГ-8 по методике «электронный нос» в режиме фронтальной подачи пробы и инжекторного ввода равновесной газовой фазы над исследуемым материалом. В качестве измерительного массива применяли набор из 8 сенсоров с наибольшей чувствительностью к различным классам легколетучих органических соединений. Установлено, что цветометрические характеристики образцов мяса, полученного разными способами оглушения птицы, идентичны. Различия в качественном и количественном составе аромата образца мяса 2, полученного оглушением птицы в газовой среде, и образца мяса 3, полученного электрооглушением птицы, составляют от 2 до 10%, что не позволяет говорить о существенном изменении в составе легколетучих соединений, выделяющихся из мяса. Сенсорные характеристики исследованных образцов мяса, полученного разными способами оглушения птицы, практически идентичны. Это доказывает возможность применения более эффективной технологии газового оглушения. The color and aroma characteristics of broiler meat obtained by stunning poultry with carbon dioxide and electric method were studied. Samples of broiler meat produced in Kazakhstan by electric deafening – sample 1; in the Russian Federation: gas deafening – sample 2; electric deafening – sample 3 were the object of research. Each of the samples was represented by meat from 2 parts of the carcass: thighs and breasts. Meat samples were scanned in TrueColor color mode, with an optical resolution of 300 dpi and a size of at least 500 ґ 500 pix. The digital image was processed using ImageJ 1.46. Numerical characteristics of the color of the studied samples of poultry meat were determined by the manometric method using a flatbed scanner. Images were processed on a computer in RGB mode. The study of the smell of meat was carried out on the MAG-8 smell analyzer using the "electronic nose" method in the mode of frontal sample delivery and injection of the equilibrium gas phase over the test material. A set of 8 sensors. the most sensitive to various classes of volatile organic compounds were used as a measuring array. It was found that the colorometric characteristics of meat samples obtained by different methods of stun poultry are identical. Differences in the qualitative and quantitative composition of the flavor of meat sample 2, obtained by stun poultry in a gas environment, and meat sample 3, obtained by electric stun poultry, are from 2 to 10%, which does not allow us to talk about a significant change in the composition of low-volatile compounds released from the meat, The sensory characteristics of the studied meat samples obtained by different methods of stun poultry are almost identical. This proves the possibility of using more effective gas stun technology.

scholarly journals Wild thyme (Thymus serpyllum L.) supercritical extract as antioxidant in precooked pork chops during chilled storage

2021 ◽  
Vol 854 (1) ◽  
pp. 012040
Author(s):  
M Jokanovic ◽  
M Ivic ◽  
S Skaljac ◽  
V Tomovic ◽  
B Sojic ◽  
...  
Keyword(s):  
Protective Effect ◽  
Lipid Oxidation ◽  
Oxidative Stability ◽  
Storage Period ◽  
Sensory Characteristics ◽  
Chilled Storage ◽  
Cooking Process ◽  
Wild Thyme ◽  
Thymus Serpyllum ◽  
Significant Protective Effect

Abstract The effect of thyme supercritical extract on oxidative stability of precooked and cold-stored (at 4°C for 6 days) pork chops was analysed. Thyme extract was applied with a marinated process (SF1), or was introduced on the surface of the chops after cooking (SF2). Thyme extract in SF1 samples showed a significant protective effect towards oxidation of lipids during the cooking process. Both processes of thyme application showed potential for lipid oxidation inhibition throughout the refrigerate storage period of precooked pork chops, thus protecting colour and sensory characteristics of the samples. Finally, at the end of storage period, the lowest oxidative changes were determined for SF1chops.

Quality and sensory characteristics of Culatello dry-cured products obtained from the Italian autochthonous pig Suino Nero Lucano and from a modern crossbred pig

2015 ◽  
Vol 55 (9) ◽  
pp. 1192 ◽  
Author(s):  
Annamaria Perna ◽  
Amalia Simonetti ◽  
Immacolata Intaglietta ◽  
Emilio Gambacorta
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Chemical Composition ◽  
Oxidative Stability ◽  
Consumer Preference ◽  
Monounsaturated Fatty Acids ◽  
Sensory Characteristics ◽  
Overall Acceptability ◽  
Tbars Values ◽  
Haem Iron

The effect of the Suino Nero Lucano (SNL) pig genotype and crossbred genotype (CG) on chemical composition, fatty acid profile, oxidative stability, and sensory characteristics of 30 Culatello samples (15 from SNL and 15 from CG pigs) was investigated. SNL pigs showed a slower growth and therefore were older and lighter at slaughter. Samples from SNL pigs showed significantly (P < 0.001) higher amounts of haem iron, intramuscular fat, and monounsaturated fatty acids than those from CG. The oxidative stability, evaluated by measuring the acid, peroxide and TBARS values, was significantly larger in SNL than in CG Culatello. Moreover, Culatello from SNL pigs showed the highest level of consumer preference in term of overall acceptability (P < 0.05), odour (P < 0.001), taste (P < 0.01), appearance (P < 0.05), and consistency (P < 0.01). The present study confirms that the SNL pig represents a useful resource both for the obtainment of products with high nutritional and sensory value and for promoting the economic development of areas where they are raised.

Effect of fish protein hydrolysate on physicochemical properties and oxidative stability of shortfin scad (Decapterus macrosoma) emulsion sausage

Food Research ◽  
2021 ◽  
Vol 5 (3) ◽  
pp. 225-235
Author(s):  
M. Hamzah ◽  
M.I. Shaik ◽  
N.,M. Sarbon
Keyword(s):  
Physicochemical Properties ◽  
Lipid Oxidation ◽  
Oxidative Stability ◽  
Protein Hydrolysate ◽  
Control Sample ◽  
Textural Properties ◽  
Fat Globules ◽  
Significant Difference ◽  
Tbars Values ◽  
Emulsion Sausage

The present study aimed to investigate the effect of silver catfish (Pangasius sp.) protein hydrolysate (SCPH) on physicochemical properties and oxidative stability of emulsion sausage prepared from shortfin scad (Decapterus macrosoma). The SCPH with different concentrations (1, 2, and 3%) was added into fish emulsion sausage followed by characterization of its physicochemical properties. The results obtained from this study revealed that the fish emulsion sausages contain high moisture content (63.49-66.85%), protein content (18.04-21.89%), fat content (7.16-8.59%), carbohydrate content (2.28- 2.72%) and low ash contents (1.83-2.17%). The addition of SCPH improvised the hardness, cohesiveness, chewiness and resilience of the emulsion sausage (p<0.05) compared to the control sample. The finer fat globules were visualized in the sample added with SCPH at higher concentration of 3% (10-20 µm) compared to other concentrations (1 and 2%). Besides, the incorporation of SCPH at all concentrations shows a significant difference on L*, a* and b* values of the emulsion sausages during extended storage of 12 days (p<0.05). The SCPH was shown to retard lipid oxidation of sausage after extended storage of 12 days, with lower PV and TBARS values. Therefore, the effectiveness in retarding lipid oxidation achieved with the higher concentration of SCPH and it also capable to retain textural properties of fish emulsion sausage in the refrigerated storage of 12 days. Thus, as an alternative antioxidant in fish emulsion sausage, SCPH showed a potential to be used as it improved the physicochemical properties and oxidative stability of fish emulsion sausage.

Assessment of broiler chicken meat quality collected from different markets of Chittagong

2020 ◽  
Vol 49 (1) ◽  
pp. 29-36
Author(s):  
JC Dey ◽  
I Jahan ◽  
S Ghosh ◽  
BC Halder ◽  
MH Ahmad ◽  
...  
Keyword(s):  
Meat Quality ◽  
Thiobarbituric Acid ◽  
Thiobarbituric Acid Reactive Substance ◽  
Broiler Meat ◽  
The Road ◽  
Chemical Evaluation ◽  
Tbars Values ◽  
Meat Samples ◽  
Water Holding

The study was conducted to assess the quality of broiler meat procured from four different markets of Chittagong city, (Baddar Hat; BH, Pahartoli; PHT, Jhaowtola; JT and Riazuddin bazar; RB).  Broiler was collected from each of the market by replicating four times with five birds per replicate for assessing the meat quality in this study. A total of 20 shops was selected randomly and live broilers of similar age were collected from each shop located in the different places of metropolitan city of Chittagong to conduct the experiment.  Meat samples were taken from the live broilers to appraise the quality based on the H2O level, pH, water holding capacity (WHC), extract release value (ERV), tyrosine value (TV) and thiobarbituric acid reactive substance value (TBARS) through the laboratory analyses. The data revealed that the TV and TBARS values differed significantly (P<0.01) between markets except for the other parameters (H2O, pH, WHC, ERV).  The highest TV value (0.66) was found in the meat of PHT market while lowest TV value (0.54) being in BH and JT markets. The TBARS value was improved (P<0.01) in the meat of BH and JT markets compared to that of other markets.  The road distance (RD) and the transporting time (TT) for carrying birds were affected (P<0.01) by markets.  It can be concluded that the quality of broiler meat of different markets appears to be good based on the chemical evaluation, even though TT and RD might influence meat quality to a bit. Bang. J. Anim. Sci. 2020. 49 (1): 29-36

Oxidative Stability, Physicochemical, and Sensory Characteristics of Vegetable Oils at Their Induction Periods

2019 ◽  
Vol 48 (6) ◽  
pp. 649-660
Author(s):  
Mi So Kim ◽  
Da-Som Kim ◽  
Jin-Ju Cho ◽  
Seong Jun Hong ◽  
Chang Guk Boo ◽  
...  
Keyword(s):  
Oxidative Stability ◽  
Vegetable Oils ◽  
Sensory Characteristics ◽  
Induction Periods

scholarly journals Ingredient-Dependent Extent of Lipid Oxidation in Margarine

Antioxidants ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 105
Author(s):  
Sarah Fruehwirth ◽  
Sandra Egger ◽  
Dennis Kurzbach ◽  
Jakob Windisch ◽  
Franz Jirsa ◽  
...  
Keyword(s):  
Citric Acid ◽  
Lipid Oxidation ◽  
Oxidative Stability ◽  
Green Tea ◽  
Acyl Chain ◽  
Green Tea Extract ◽  
Tocopheryl Acetate ◽  
Tea Extract ◽  
The Impact ◽  
Β Carotene

This study reports the impact of margarine-representative ingredients on its oxidative stability and green tea extract as a promising antioxidant in margarine. Oil-in-water emulsions received much attention regarding factors that influence their oxidative stability, however, water-in-oil emulsions have only been scarcely investigated. Margarine, a widely consumed water-in-oil emulsion, consists of 80–90% fat and is thermally treated when used for baking. As different types of margarine contain varying additives, their impact on the oxidative stability of margarine during processing is of pressing importance. Thus, the influence of different ingredients, such as emulsifiers, antioxidants, citric acid, β-carotene and NaCl on the oxidative stability of margarine, heated at 80 °C for 1 h to accelerate lipid oxidation, was analyzed by the peroxide value and oxidation induction time. We found that monoglycerides influenced lipid oxidation depending on their fatty acyl chain. α-Tocopheryl acetate promoted lipid oxidation, while rosemary and green tea extract led to the opposite. Whereas green tea extract alone showed the most prominent antioxidant effect, combinations of green tea extract with citric acid, β-carotene or NaCl increased lipid oxidation in margarine. Complementary, NMR data suggested that polyphenols in green tea extracts might decrease lipid mobility at the surface of the water droplets, which might lead to chelating of transition metals at the interface and decreasing lipid oxidation.

scholarly journals Quantitative and Predictive Modelling of Lipid Oxidation in Mayonnaise

Antioxidants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 287
Author(s):  
Donny W. H. Merkx ◽  
Andries Swager ◽  
Ewoud J. J. van Velzen ◽  
John P. M. van Duynhoven ◽  
Marie Hennebelle
Keyword(s):  
Lipid Oxidation ◽  
Oxidative Stability ◽  
Shelf Life ◽  
Onset Time ◽  
Predictive Modelling ◽  
Oxidation Products ◽  
Food Emulsions ◽  
Hydroperoxide Formation ◽  
Life Tests ◽  
Volatile Aldehydes

Food emulsions with high amounts of unsaturated fats, such as mayonnaise, are prone to lipid oxidation. In the food industry, typically accelerated shelf life tests are applied to assess the oxidative stability of different formulations. Here, the appearance of aldehydes at the so-called onset time, typically weeks, is considered a measure for oxidative stability of food emulsions, such as mayonnaise. To enable earlier assessment of compromised shelf-life, a predictive model for volatile off-flavor generation is developed. The model is based on the formation kinetics of hydroperoxides, which are early oxidation products and precursors of volatile aldehydes, responsible for off-flavor. Under accelerated shelf-life conditions (50 °C), hydroperoxide (LOOH) concentration over time shows a sigmoidal curvature followed by an acceleration phase that occurs at a LOOH-concentration between 38–50 mmol/kg, here interpreted as a critical LOOH concentration (CCLOOH). We hypothesize that the time at which CCLOOH was reached is related to the onset of aldehyde generation and that the characterization of the LOOH-generation curvature could be based on reaction kinetics in the first days. These hypotheses are tested using semi-empirical models to describe the autocatalytic character of hydroperoxide formation in combination with the CCLOOH. The Foubert function is selected as best describing the LOOH-curvature and is hence used to accurately predict onset of aldehyde generation, in most cases within several days of shelf-life. Furthermore, we find that the defining parameters of this model could be used to recognize antioxidant mechanisms at play.

scholarly journals Comparison of Dried Plum Puree, Rosemary Extract, and BHA/BHT as Antioxidants in Irradiated Ground Beef Patties

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Iulia Movileanu ◽  
Máryuri T. Núñez de González ◽  
Brian Hafley ◽  
Rhonda K. Miller ◽  
Jimmy T. Keeton
Keyword(s):  
Lipid Oxidation ◽  
Ground Beef ◽  
Thiobarbituric Acid ◽  
Antioxidant Effect ◽  
Butylated Hydroxytoluene ◽  
Rosemary Extract ◽  
Thiobarbituric Acid Reactive Substances ◽  
Beef Patties ◽  
Tbars Values ◽  
Dose Levels

Fresh ground beef patties with (1) no antioxidant (control), (2) 0.02% butylated hydroxyanisole/butylated hydroxytoluene (BHA/BHT), (3) 3% dried plum puree, or (4) 0.25% rosemary extract were aerobically packaged, irradiated at target doses of 0, 1.5, or 2.0 kGy (1.7 and 2.3 kGy actual doses), and stored at C. The samples were evaluated for lipid oxidation on 0, 3, 7, 14, 21, and 28 days of storage after irradiation. When compared to the control, all antioxidant treatments were effective in retarding () irradiation-induced lipid oxidation during storage as determined by 2-thiobarbituric acid reactive substances (TBARs) values. Rosemary extracts had the same antioxidant effect () as BHA/BHT in irradiated and nonirradiated beef patties, followed by the dried plum puree treatment. Irradiation increased TBARs values, but no differences were noted in oxidation between irradiation dose levels.

Occurrence and Survival of Verocytotoxin-Producing Escherichia coli O157 in Meats Obtained from Retail Outlets in The Netherlands

1999 ◽  
Vol 62 (10) ◽  
pp. 1115-1122 ◽  
Author(s):  
A. E. HEUVELINK ◽  
J. T. M. ZWARTKRUIS-NAHUIS ◽  
R. R. BEUMER ◽  
D E. de BOER
Keyword(s):  
Escherichia Coli ◽  
The Netherlands ◽  
Meat Products ◽  
Storage Period ◽  
Processed Meat ◽  
Raw Meat ◽  
Pork Products ◽  
Minced Beef ◽  
Beef Products ◽  
Meat Samples

In 1996 and 1997, 2,941 fresh and processed meat products obtained from supermarkets and butcher shops in The Netherlands were examined for the presence of verocytotoxin-producing Escherichia coli of serogroup O157 (O157 VTEC). Additionally, the fate of O157 VTEC in raw meat products stored at low temperatures and the effect of different additives were evaluated. O157 VTEC strains were isolated from 6 (1.1%) of 571 samples of raw minced beef, 2 (0.5%) of 402 samples of raw minced mixed beef and pork, 1 (1.3%) of 76 samples of raw minced pork, 1 (0.3%) of 393 samples of other raw pork products, and 1 (0.3%) of 328 samples of cooked or fermented ready-to-eat meats. Other raw beef products (n = 223) and meat samples originating from poultry (n = 819), sheep or lamb (n = 46), or wild animals (n = 83) were all found to be negative for O157 VTEC. For the survival experiments we used tartaar (minced beef with a fat content of less than 10%) and filet americain (tartaar mixed with a mayonnaise-based sauce [80 to 20%]). The O157 VTEC strain tested was able to survive in tartaar and filet americain stored at −20, 0, 5, or 7°C for 3 days. At both 7 and at 15°C, O157 VTEC counts in tartaar and filet americain remained virtually unchanged throughout a storage period of 5 days. Addition of acetic acid (to pH 4.0), sodium lactate (1 and 2% [wt/wt]), or components of the lactoperoxidase–thiocyanate–hydrogen peroxide system to filet americain did not result in a reduction of viable O157 VTEC cells during storage at 7 or 15°C. It was concluded that raw meat contaminated with O157 VTEC will remain a hazard even if the meat is held at low or freezing temperatures.

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