Surimi-like Material Research Articles

Cryoprotectant Effects on Duck Surimi During Frozen Storage

The surimi-like material made from duck (DSLM) was investigated on the freeze-thaw stability during 4 months of frozen storage using different low-sweetness cryoprotectants such as palatinose (PAL), trehalose (TRE), polydextrose (PLD), maltodextrin (MAL), sucrose and sorbitol (SS), and lactitol (LAC) at a 6% concentration. As compared to the CON, the inclusion of cryoprotectants significantly improved the water-holding capacity of all treated samples. Particularly, as compared to all of the cryoprotectants evaluated, the PLD and PAL samples displayed greater stability concerning Ca2+-ATPase activity, sulfhydryl concentration, and protein solubility. All samples' endothermic peaks declined over time, showing changes in thermal characteristics during storage. A scanning electron microscope (SEM) observation of the CON and LAC-treated samples after 4 months of frozen storage revealed an increase in the number of pores. These findings imply that low-sweetness PLD and PAL outperformed the usual cryoprotectant combination of sucrose and sorbitol (SS) and that they could be used in frozen DSLM. They provide greater water-holding capacity, anti-freezing characteristics, lowered sulfhydryl oxidation, increased protein solubility, and structural integrity, which renders them useful components for innovation in the frozen surimi-like material industry.

Effect of incorporating surimi‐like material from mechanically deboned turkey meat on physicochemical and sensory characteristics of ready‐to‐eat broiler breast meat

The study evaluated the effects of the partial replacement of broiler breast meat (BBM) by turkey surimi-like material (0%, 30% and 60% TSL) or mechanically deboned turkey meat (30% MDTM) on the physicochemical and sensory properties of a low-fat ready-to-eat (RTE) restructured broiler breast. Replacement by MDTM and TSL reduced the protein content and L* values and increased the calcium content, hardness, chewiness, and springiness values. The RTE with MDTM was redder (lower h values) and had higher fat content and lipid oxidation. Replacement with 60% TSL increased moisture, sodium content, syneresis and hue angle (ho) values, and compromised the RTE sensory acceptance. Replacement with 30% TSL resulted in lesser changes, maintaining the light color and soft flavor characteristics of the broiler breast RTE. Therefore, 30% TSL can be used as a broiler breast replacer to develop poultry products with higher sensory characteristics.

Physicochemical characteristics of surimi-like material made from the muscle tissues of freshwater mussels (Sinanodonta woodiana Lea, 1834)

The aim of the study was to determine selected characteristics of surimi-like material (SLM) made from the muscle tissues of Sinanodonta woodiana (Lea, 1834) freshwater mussels. The research material consisted of unwashed mussel muscle homogenate as the control sample—C, mussel muscle tissue twice washed with water (SLM-W) and sample washed with NaCl at a concentration of 0.169 mol/L as well as water (SLM–S). A raw control sample and surimi like-materials were analysed using the SDS-PAGE technique. They were also tested using the DMTA method (dynamic mechanical thermal analysis) while heating the samples up to 80 °C and cooling to 20 °C. The thermal drip and texture of gels after heating (75 °C, 30 min) were also determined. The washing procedure had a significant impact on the protein composition of the SLMs. A significantly (p < 0.05) higher percentage of proteins with molecular weights of 270–273 kDa and 105–110 kDa (corresponding to specific filamin isoforms), as well as 42–43 kDa (corresponding to actin), were found in the SLMs compared to sample C. Ccorrelation analysis confirmed a strong positive relationship between the percentage share of the above proteins and the values of the elasticity modulus (r ≥ 0.84) and firmness (r ≥ 0.88) of SLM gels. The SLM-S sample was characterised by the lowest significant (p < 0.05) thermal drip values. During heating, the rheological traits of all samples changed at two stages: from 20 to 50 °C and over 50 °C. The highest dynamics of variation in the elasticity modulus (G′) value were noticed at temperatures exceeding 50 °C in all samples. The G′ values in the SLM samples were significantly greater than the values in sample C. The analysis revealed a strong correlation (r ≥ 0.81) between the determinants of the texture of the SLM samples and their rheological parameters. Sample SLM-W was the one with the highest firmness and elasticity values. The analysis showed that the textural properties of the SLM samples mainly resulted from the reaction of spatial matrices to mechanical interactions.

Texture profile of surimi-like material from mechanically deboned turkey meat

Abstract The study aimed to evaluate the textural properties of turkey surimi-like (TSL) gels from mechanically deboned turkey meat (MDTM) by washing procedures. The effects of water, sodium chloride, sodium bicarbonate, and potassium phosphate buffer washing solutions, cycles, and salt addition were investigated. Sodium bicarbonate washing solution produced lightened and whitened cooked gels. Addition of salt reduced (p &lt; 0.05) cooking loss and increased (p &lt; 0.05) hardness and chewiness. TSL gels from sodium bicarbonate had the lowest (p &lt; 0.05) cooking loss and hardness, and increased (p &lt; 0.05) adhesiveness after two washing cycles. Scanning electron micrographs showed fine-stranded gel structures formed at low ionic strength and coarsely aggregated gel structures at high ionic strength. Salt addition improved the TSL gelling properties. Two washing cycles of MDTM with sodium bicarbonate solution generate high-quality colorless gels of TSL with proper textural properties and could be suggested as an alternative meat source in the manufacturing of surimi-based foodstuffs.

Quality of cooked sausages with added beef or pork heart surimi

Beef heart surimi (BHS) and pork heart surimi (PHS) with or without 0.02% BHA (butylated hidroxyanisole) were evaluated in cooked sausages at concentrations of 20, 40, and 60% by weight replacing lean meat. The sausages’ physicochemical, textural, and sensory properties were evaluated. Neither pH, water holding capacity, cooking yield, nor shear force were affected (p > .05) by the addition of BHS and PHS in both sausage types. The addition of BHS or PHS increased protein content (p < .05), while the addition of 20% BHS or PHS increased luminosity and decreased lipid oxidation in both sausage types. In beef sausages, all treatments treated with BHS without BHA scored similarly to the control (p > .05) in terms of odor. Additionally, in pork sausages with 20% PHS rated highest for appearance, color, and odor similarly to the control. BHS or PHS can be used as a substitute for meat in cooked sausages. Practical applications Demand for high-quality proteins is increasing due to a growing world population. The meat industry generates large volumes of by-products which are expensive to treat and dispose of ecologically. Some by-products with high nutritional value, such as the heart, constitute part of the diet and culinary recipes in many countries. In this investigation, the application of surimi technology was used to obtain a high myofibrillar protein content from beef and pork heart. Beef or pork heart surimi incorporated into cooked sausages at concentrations above 20% increased protein content and had good sensory acceptability. Therefore, the application of the production of surimi-like material from beef and pork hearts could provide a new approach toward increasing the value of hearts and their use in the functional foods market. Moreover, processors can also benefit from the development of an efficient and economical technology for processing undervalued meat into value added meat products.

Effect of washing cycles and solutions on chemical composition and physicochemical properties of the surimi‐like material from mechanically deboned turkey meat

The effects of washing solutions and number of cycles on mechanically deboned turkey meat (MDTM) were evaluated for the production of surimi-like material (SLM) using water, sodium chloride, sodium bicarbonate, and potassium phosphate buffer. Yields vary from a low of 30.98% with sodium chloride solution to as high as 37.33% with sodium bicarbonate. Chemical composition of washed samples showed moisture content of 75.46%–79.52%, fat at 5.87%–7.14%, protein at 12.35%–15.36%, and ash at 0.81%–1.29%. Repeated washings resulted in reduce in soluble proteins. Washing with sodium bicarbonate increased sodium content of unwashed MDTM from 60.76 mg/100 g to 109.41 mg/100 g, while water and phosphate buffer decreased it to 5.33 mg/100 g and 7.95 mg/100 g. SLM washed with sodium bicarbonate had higher pH and water holding capacity, and showed better changes in color characteristics than unwashed MDTM and other SLMs. This study demonstrates that sodium bicarbonate solution provided a desirable SLM with best technological quality. Practical applications MDTM is widely used by the Brazilian industry in the production of meat products, in which the use of up to 60% of the product is allowed. However, in products with a low fat content and with light color characteristics, such as some cured cooked poultry, the use of MDTM is limited precisely because it contains high content of fats and heme pigments. Washing process is one of a practical method to produce SLM resulting in higher myofibrillar proteins concentration and lower fat and heme pigments. However, different washing solutions and multiple washes provide different qualities of SLM from different species. Thus, determining the optimal washing process and its effects on the SLM characteristics is important for its application in meat products with low fat and with less pigmentation. Due to its properties, all types of SLM had potential applications for meat replacer in the production of emulsified and restructured meat products, with emphasis on the SLM obtained by use of sodium bicarbonate washing solution.

Physico-chemical and thermal properties of chicken myofibrillar protein concentrate (CMPC) mixed with barley bran flour during frozen storage [pdf

BACKGROUND Possible new additives for surimi-like products made from chicken meat, which could improve its functional properties during frozen storage, are the subject of much research. The use of dietary fibre in surimi-like products made from chicken meat has not been extensively studied. The objective of this study was to determine the effectiveness of barley bran flour in stabilizing chicken myofibrillar proteins during frozen storage and maintaining its functionality. METHODS Surimi-like material (chicken myofibrillar protein concentrate – CMPC) from mechanically deboned chicken meat was mixed with barley bran flour (0–6%) and stored in a freezer for 30, 60, 90 and 180 days. Instrumental color measurements (L*, a*, and b* values) were taken using a Hunter-Lab Mini ScanXE. Texture profile analysis (TPA) tests were performed using a TA.XT2i SMS Stable Micro Systems Texture Analyzer) equipped with an aluminium cylindrical probe P/75. Differential scanning calorim- etry (DSC) was used for the determination of denaturation temperatures and enthalpies. RESULTS Denaturation enthalpies of CMPC increased when the mass fraction of barley bran was increased (w = 0–6%). Instrumental color parameters (L*, a* and b*) of CMPC gels were significantly (p < 0.05) af- fected by the addition of barley bran. Texture profile analysis (TPA) parameters – hardness and chewiness – increased significantly (p < 0.05) with the addition of barley bran (w = 0–6%). Cohesiveness and springiness were also significantly (p < 0.05) affected by the addition of barley bran (w = 0–6%) during frozen storage. CONCLUSIONS The increase in denaturation enthalpies and some instrumental textural and color parameters, indicate possible interactions of chicken myofibrillar proteins with barley bran.

Effect of washing cycles on the quality of surimi-like material obtained from mechanically deboned chicken meat

The appropriate number of washing cycles for obtaining most of the surimi-like materials is not well defined in literature. The aim of this work was to investigate the influence of the number of washing cycles (one, two, or four) on the quality of surimi-like material obtained from mechanically deboned chicken meat (MDCM) using the bleaching method with sodium bicarbonate. The product was evaluated based on its chemical and physical characteristics. The chemical compositions of samples showed an increase in protein (45.7 to 89.9%, dry basis) and decrease in fat (49.1 to 7.0%, dry basis) contents, while the moisture content increased from 69.5 to 79.1% after four washing cycles. Washing diminished yield. Gel prepared with MDCM washed once showed the lowest gel strength (507.1 g.cm). It thereafter increased to 546.0 and 602.7 g.cm after double and quadruple washings, respectively. Higher content of myofibrillar proteins and higher whiteness were also obtained after successive washings. It was concluded that four washing cycles was the most appropriate method for producing surimi-like material from MDCM.

Influence of Adding Recovered Protein from Processing Wastewater on the Quality of Mechanically Separated Chicken Meat Surimi Like-Material.

Functional and nutritional soluble proteins can be recovered from surimi (and surimi-like material) processing wastewater, reducing environmental problems and the cost of an irresponsible waste disposal. Recovered proteins may be added back at a low percentage to surimi products. The aim of this work was to evaluate the effect of the addition of soluble recovered proteins (RP), obtained from mechanically separated chicken meat surimi-like material (MSCM-SLM) processing wastewater by acidic pH-shifting, on the composition and texture of RP-MSCM-SLM, with RP contents of 0, 10, 20 and 30% (w/w) in the mixture. For that, proximate composition and gel properties were evaluated. The fat content of the MSCM-SLM was significantly reduced to 11.98% and protein increased to 83.64% (dry basis) after three washing cycles. The addition of 30% RP in the MSCM-SLM significantly augmented the protein content to 93.45% and reduced fat content from to 2.78%. On the other hand, the addition of RP was responsible for a drastic decrease in texture parameters, reaching 252.36 g, 185.23 g.cm, and 6.97 N for breaking force, gel strength and cutting strength, respectively, when 30% of RP was included in the MSCM-SLM. It was concluded that the obtained intermediary product (RP-MSCM-SLM) is a good option to applications in processed meat products where high texture parameters are dispensable, e.g., emulsified inlaid frankfurter-type sausages, but high protein content and low fat content desired.

Properties of Frankfurter-type Sausages with Pork Back-fat Replaced with Bovine Heart Surimi-like Materials.

This study investigates the effect of bovine heart surimi-like material (BHSM) used as a back fat replacer, on the physicochemical and sensory characteristics of frankfurter-type sausages. Frankfurter-type sausage with added BHSM had a higher moisture content and lower fat content than the control. In addition, the samples with added BHSM had higher pH, cooking loss and 2-thiobarbituric acid-reactive substance (TBARS) value and lower water exudation than the control. The sausage formulation with 40% BHSM was more effective in delaying lipid oxidation without affecting cooking loss compared to the 60% BHSM treatment sample. Results showed that hardness values increased upon replacement with BHSM, and sausages manufactured with 40% BHSM had higher lightness and lower redness values. Panelists found there were no differences in color, odor, and tenderness scores and the overall acceptability score found that treatment samples containing 20% and 40% BHSM were preferable to the control after storage for 14 d. These results indicate that fat replacement with BHSM was beneficial to the quality of frankfurter-type sausages, and acceptable reduced-fat products can be produced when back fat is replaced with up to 40% BHSM.

Nutritional quality evaluation of surimi and kamaboko obtained from mechanically separated chicken meat

Purpose– The purpose of this paper was to determine the nutritional quality of the surimi and kamaboko obtained from mechanically separated chicken meat and evaluate the bioavailability of essential amino acids found in these products.Design/methodology/approach– The mechanically separated chicken meat (MSCM) was characterized by the proximate composition, and the surimi and kamaboko were characterized byin vitrodigestibility, determination of chemical score of amino acids and apparent bioavailability.Findings– The MSCM contains 68.1 ± 0.5, 12.9 ± 0.24, 18.5 ± 0.28 and 0.6 ± 0.06 per cent moisture, protein, lipids and ash, respectively. The moisture of the MSCM (surimi) was 80.45 ± 0.15 per cent, and the protein was 10.04 ± 0.21 per cent. The highest digestibility was found for the kamaboko (92.27 per cent) which was heat-treated and the lowest was for surimi (90.82 per cent). Histidine is a limiting amino acid. In this study, the surimi showed 84.69 per cent and the kamaboko presented 81.31 per cent of the minimum requirement for adults. In relation to the apparent bioavailability, there was a decrease of surimi to kamaboko of 2.52 per cent of the limiting amino acid histidine. The surimi and the kamaboko presented 76.94 and 75 per cent of the minimum requirement for adults, respectively.Originality/value– The application of the surimi technology in the production of a surimi-like material from mechanically deboned chicken meat provides a new approach toward increasing its value and utilization, e.g. for the development of meat-based products and analogs, as alternative protein sources, the surimi and the kamaboko exhibited a high content of essential amino acids, indicating that the protein has a relatively high nutritional quality.

Protein and water recovery from poultry processing wastewater integrating microfiltration, ultrafiltration and vacuum membrane distillation

A novel approach for the recovery of the proteins contained in the effluent formed during production of surimi-like material from mechanically recovered poultry meat was proposed, using an integrated membrane process comprising microfiltration, ultrafiltration and vacuum membrane distillation. Additionally, the possibility of using the integrated membrane process to achieve high-quality water for reuse was also investigated. Using cross-flow membrane techniques, it was found that the total recovery of soluble proteins as well as the average degree of concentration amounted to 84 % and 9.3, respectively. Moreover, using this process, the total recovery of water was 70 % and the percentage reduction in COD, TOEM and TSS in the permeate obtained using vacuum membrane distillation exceeded 99 %. As a result, the water recovered by the integrated membrane process could be reused in the manufacture of surimi-like material from mechanically recovered poultry meat.

Quality Characteristics of Spent Duck Sausages Containing Surimi Like Material Substitution During Refrigerated Storage

The quality characteristics of duck sausages prepared using different treatment were evaluated. Physicochemical, sensory and microbial properties of sausages containing duck surimi-like material substitution with cryoprotectant added (CPP) and without cryoprotectant added (NPP), antioxidant added (BHA) and, duck mince (as the control, CON) were compared. CPP and NPP sample had significantly higher (p<0.05) moisture content and lower protein and fat content compared with CON sample. The thiobarbituric acid-reactive substances (TBARS) value of all sample increased as the storage time increased up to day 30, but thereafter it decreased in all of the samples. CPP sample had significantly lower TBARS value (p<0.05) and this value remained lower than those of the other samples throughout the refrigerated storage time. Addition of duck surimi-like material to the sausages had significant effects (p<0.05) on hardness , gumminess and chewiness values of CPP and NPP sample. Treatment had no significant effect on sensory attributes of sausages prepared from duck meat. CPP sample had lower microbial activity during 40 days of refrigerated storage. However, BHA sample had no significant difference in microbial activity compared with CON sample. The results indicate that duck surimi-like material substitution with cryoprotectant added improves quality characteristics of duck sausages during refrigerated storage than the other treatments.

Optimization of parameters for obtaining surimi-like material from mechanically separated chicken meat using response surface methodology.

Surimi is a semi-processed washed fish mince protein concentrate mixed with cryoprotectants for frozen storage, which is the primary constituent of processed foods. Mechanically separated chicken meat (MSCM) is a common ingredient of comminuted sausages mainly due to its low price. The present work aimed to define the adequate parameters to obtain surimi-like material from MSCM using response surface methodology, and to characterize the chemical and textural properties of this product. The MSCM was utilized in the elaboration of surimi-like material using the bleaching method with sodium bicarbonate and sodium chloride solutions. For this purpose, the effect of process parameters viz: temperature (T = 2, 7, and 12°C), time (t = 5, 10, and 15min/cycles) and washing solution:MSCM ratio (R = 2:1, 4:1, and 6:1 w/w) were evaluated using response surface methodology. The highest composite design averages obtained were 10.7% for protein content, 1,003.4g for breaking force, 645.8g.cm for gel strength, 9.0N for cutting strength, and 24.1N.s for work of shearing at the optimum combination of processing conditions of 7°C, 10min and 4:1 washing solution:MSCM ratio, corresponding to the central points of the proposed experimental design. The obtained models had high determination coefficients, explaining 95.85, 98.23, 98.41, and 96.08% of total variability in protein content, cutting strength, breaking force, and work of shearing variabilities, respectively. According to the folding test the surimi-like material presented the same characteristics of a high quality surimi (FT = 5).

Effects of soybean protein, potato starch and pig lard on the properties of frankfurters formulated from mechanically separated chicken meat surimi-like material

Mechanically separated chicken meat has become a common ingredient of comminuted sausage products, as 'frankfurters', mainly due to its low price. The present work aimed to develop a frankfurter from mechanically separated chicken meat surimi-like material, and evaluated the chemical, rheological, microbiological and sensorial properties of this product. The response surface methodology was utilized to investigate the effects of the soybean protein, potato starch and pig lard on the texture of the obtained frankfurters. For this purpose, five levels of each factor were evaluated: soybean protein varied from 0% to 6%, potato starch from 0% to 10% and pig lard from 2% to 12%. The regression analysis of the model showed that the soybean protein exerted a linear positive effect and a quadratic negative effect in the compression force of the product (p < 0.05), and that the variable which more influenced the shear force was the potato starch, presenting linear and quadratic effects (p < 0.05). The highest composite design averages obtained were 202.2 g for breaking force, 7.9 cm for deformation, 10.1 N for shear force, and 90.9 N.s for work of shearing. The obtained models presented high determination coefficients, explaining 97.31%, 97.83%, 97.49%, and 95.39% of the breaking force, deformation, shear force and work of shearing variabilities, respectively. The microbiological analysis demonstrated that the achieved results were below the limits fixed by the FDA. The mechanically separated chicken meat surimi-like material frankfurter presented 72.2% of acceptability and 59.3% of the examiners found the color of the product slightly lighter than the ideal. Finally, the frankfurter-type sausages, without pork fat, produced and characterized here have presented promising characteristics for commercial applications.

Evaluation of frankfurters obtained from croaker (Micropogonias furnieri) surimi and mechanically deboned chicken meat surimi-like material

In order to develop a healthy low-fat frankfurter-type sausage, different levels of surimi-like material prepared from mechanically deboned chicken meat (MDCM) and whitemouth croaker (Micropogonias furnieri) meat surimi were employed in five different recipes in the percentage ratios of 100/0, 70/30, 50–50, 30/70, and 0/100, respectively. The functionality of both fish and chicken protein concentrates was evaluated based on texture analysis (breaking force, deformation, gel strength and shear force). Growth kinetics for aerobic bacteria were analyzed using the modified Gombertz model. Shelf-life was determined based on microbiological counts and sensory analysis on acceptance tests. Surimi source reflected in the physical properties of the frankfurters. Addition of MDCM surimi-like material to sausage favored greater shear force, breaking force, and gel strength. On the contrary, the increasing levels of croaker surimi reduced rheological parameter values. Deformation presented no evident correlation between the formulations and with other textural properties. Average of textural properties obtained during storage where 2.29 ± 0.16 N for breaking force, 0.74 ± 0.02 cm for deformation, 1.69 ± 0.14 N cm for gel strength, and 14.2 ± 0.8 N for shear force, for frankfurters prepared with MDCM surimi-like material. Frankfurters presented an average shelf-live of 42 days at 4°C. Mathematical models had good correlation, and may be utilized for predictive applications.

Physicochemical and sensory characteristics of burger made from duck surimi-like material

Burgers were prepared using duck surimi-like material (DSLM) with polydextrose added (SL) and DSLM with sucrose-sorbitol added (SS), and the properties of these burgers were compared with those of burgers made of chicken meat (CB) and duck meat (DB). Quality characteristics such as chemical composition, cooking loss, diameter shrinkage, color, and texture were measured. The DB had a lower moisture content (55.58%) and higher fat content (21.44%) and cooking loss (11.01%) compared with other samples, whereas CB, SS, and SL did not differ significantly in moisture (65.21-66.10%) and fat (10.42-11.16%) content or cooking loss (5.32-6.15%). The SS and SL were positioned below CB and above DB in terms of hardness, chewiness, and springiness. Ten trained panelists assessed the burgers using quantitative descriptive analysis. Among the burgers, CB had the greatest brightness of color, hardness, springiness, and chewiness. The SS had greater sweetness than the other burgers. Both SL and SS had significantly less animalic odor, meaty flavor, oiliness, juiciness, and saltiness compared with DB. The physicochemical and sensory characteristics of burgers prepared from DSLM approached those of burgers made of chicken.

Freeze-thaw stability of duck surimi-like materials with different cryoprotectants added

In this study, the effect of the addition of different cryoprotectants on the freeze-thaw stability of duck surimi-like material (DSLM) was tested. A 6% (wt/wt) low-sweetness cryoprotectant (i.e., polydextrose, trehalose, lactitol, or palatinit) was added to a 3-kg portion of DSLM, and the mixture was subjected to freeze-thaw cycles during 4 mo of frozen storage. The DSLM with no cryoprotectant added (control) and with a 6% sucrose-sorbitol blend (high-sweetness cryoprotectant) added also were tested. The polydextrose-added sample had the highest water-holding capacity among the sample types tested (P < 0.05), and it retained its higher value during frozen storage. The protein solubility of the cryoprotectant-added samples decreased significantly (P < 0.05) from 58.99 to 59.60% at initial frozen storage (0 mo) to 48.60 to 54.61% at the end of the experiment (4 mo). The gel breaking force of all samples significantly decreased (P < 0.05) at 1 mo; this breaking force then stabilized after further frozen storage for the cryoprotectant-added samples, whereas it continued to decrease in the control samples. Gel deformation fluctuated during frozen storage and was significantly lower (P < 0.05) at the end of experiment than at the beginning. The presence of cryoprotectants reduced the whiteness of DSLM. Samples containing polydextrose, trehalose, lactitol, and palatinit were able to retain the protein solubility, gel breaking force, and deformation of DSLM better than control samples after 4 mo of frozen storage and exposure to freeze-thaw cycles. The effects of these low-sweetness cryoprotectants are comparable to those of sucrose-sorbitol, thus, these sugars could be used as alternatives in protecting surimi-like materials during frozen storage.

Physicochemical Properties and Sensory Analysis of Duck Meatballs Containing Duck Meat Surimi‐Like Material during Frozen Storage

The physicochemical properties and sensory analysis of duck meatballs containing duck meat surimi-like material during frozen storage were evaluated. Properties of meatballs containing duck surimi-like material prepared by acid solubilization (ACDS), alkaline solubilization (ALDS), and conventional processing (CDS) as well as duck mince (as the control, CON) were compared. ACDS had significantly higher (P < 0.05) moisture and protein content and lower fat content compared with CON. The thiobarbituric acid-reactive substances (TBARS) value of all samples increased as the storage time increased up to week 8 (P < 0.05), but thereafter it decreased in most of the samples. ACDS and ALDS had significantly higher TBARS values (P < 0.05), and these values remained higher than those of the other samples throughout the frozen storage period. Addition of surimi-like material to the meatballs had significant effects (P < 0.05) on springiness, gumminess, and chewiness values of all samples. Ingredients and frozen storage affected most sensory attributes in samples significantly (P<0.05). No significant increase in growth of organisms occurred during 12-wk frozen storage The results indicate that acid-alkaline solubilization methods improve both physicochemical and sensory properties of duck meatballs containing duck surimi-like material. Thus, these techniques should be applicable to product development of duck surimi-like material. Surimi-like material from duck meat is an alternative source of meat protein to produce ready-to eat or value-added products. Little is known about duck surimi-like material and physicochemical and sensory properties of such products. Therefore, the results of this study are critical for assessing the possibility of duck meat surimi-like material for human food.

Comparisons of the Properties of Whitemouth Croaker (&amp;lt;i&amp;gt;Micropogonias furnieri&amp;lt;/i&amp;gt;) Surimi and Mechanically Deboned Chicken Meat Surimi-Like Material

The aim of this work was to evaluate and compare the color, texture and sensory characteristics of whitemouth croaker (Micropogonias furnieri) surimi and mechanically separated chicken meat (MDCM) surimi-like material (SLM). The whiteness of the MDCM-SLM was higher (P > 0.05) than that from the surimi. Higher breaking force (P P P > 0.05). The MDCM-SLM was more accepted by the panelists (P