Physico-chemical and sensory characteristics of porkloin roast cooked to three internal temperatures

The experiment was conducted to examine the effects of three cooking internal temperatures (65. 75 or 85'C) on the physical, chemical and sensory characteristics of pork. Pork muscle, Longissimus dorsi, used were collected immediately after slaughter dnd stored overnight at -18°C. Loins were removed, allowed to thaw at room temperature, and cut into fifteen chops with an average weight of 300g. The chops were randomly allocated to three internal temperatures, 65, 75 or 85°C and transferred into the oven where they were roast cooked until the desired internal temperature was reached. The cooked weight, cooking loss, Warner Bratzler shear value and proximate composition were determined on cooked pork. Sensory attributes were also assessed by a 10-member panel using a 9-point hedonic scale. The results of the study indicated that final internal cooking Temperature had no effect (P>0.05) on cooking loss und shear value. No significant effect was observed on tenderness, juiciness and flavour. Overall acceptability was significantly p<0.05) affected with pork loin cooked to internal temperature of 85'C most acceptable. While moisture and ash contact decreased with increased. The fat content was 101 consistent influenced. The final internal cooking temperatures had no effect on the proximate composition (P>0.05) of the pork loin.

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Quality Evaluation of Ogi from Acha (Digitaria exilis), Soybean (Glycine max) and Carrot (Daucus carota L.) Composite Flour

Asian Journal of Biotechnology and Bioresource Technology ◽

10.9734/ajb2t/2019/v5i230054 ◽

2019 ◽

pp. 1-11

Author(s):

Moses Terkula Ukeyima ◽

Israel Okpunyi Acham ◽

Comfort Temitope Awojide

Keyword(s):

Functional Properties ◽

Proximate Composition ◽

Control Sample ◽

Sensory Characteristics ◽

Composite Flour ◽

Soybean Flour ◽

Overall Acceptability ◽

Significant Difference ◽

Constant Addition ◽

Milk Flavor

Ogi was produced from composite flour of fermented Acha, roasted Soybean and Carrot. The raw materials were blended in varying proportions. Proximate composition, functional properties and sensory characteristics of the formulated Ogi samples were evaluated. The results of the proximate composition showed a significant increase in moisture (5.36% to 9.94%), protein (3.94% to 16.98%), fat (1.89% to 10.23%), crude fiber (1.80% to 3.12%) and ash (0.35% to 0.99%); while a decrease was observed in carbohydrate (86.66% to 58.74%) with increase in supplementation with roasted Soybean flour and constant addition of carrot flour along with the milk flavor. The functional properties showed significant increase in foam capacity (5.99% to 7.97%), Swelling index (2.46 v/v to 3.08 v/v) and Least gelation capacity (8.10% to 14.0%); while a decrease was observed in bulk density (0.84 g/mL to 0.72 g/mL), water absorption capacity (1.40% to 1.10%) and foaming stability (3.39% to 2.79%). Sensory characteristics result revealed that there was no significant difference (p<0.05) in aroma and overall acceptability with increasing incorporation of roasted Soybean flour and constant addition of Carrot flour with milk flavor. Aside the control sample (containing 100% fermented Acha flour) there was preference for Sample C (70% fermented Acha flour: 15% roasted Soybean flour: 10% Carrot flour: 5% Milk flavor) and Sample D (60% fermented Acha flour: 25% roasted Soybean flour: 10% `Carrot flour: 5% Milk flavor) in terms of color (6.65 and 6.25), taste (6.95 and 6.35), aroma (6.45 and 6.30), mouth feel (6.10 and 6.35) and overall acceptability (6.50 and 6.50) respectively, among the blend formulations. Supplementation of fermented Acha with roasted Soybean and Carrot flour considerably increased the protein and fat contents of the blend; hence Soybean should be used for supplementation of cereal based product in order to improve their nutritional composition.

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Effects of Fermented Maize Residue Addition on the Physico-chemical and Sensory Properties of Chin-Chin

Asian Food Science Journal ◽

10.9734/afsj/2021/v20i1130377 ◽

2021 ◽

pp. 65-73

Author(s):

Owuno Friday ◽

Achinewu Simeon Chituru

Keyword(s):

Proximate Composition ◽

Protein Digestibility ◽

Pasting Properties ◽

Absorption Capacity ◽

Composite Flour ◽

Crude Fibre ◽

Overall Acceptability ◽

Physico Chemical ◽

Significant Difference ◽

Pasting Temperature

Chin-Chin, a traditional Nigerian snack was prepared utilizing wheat-fermented maize residue composite flour at 0 – 30% replacement levels. Effects of this addition on the functional and pasting properties of the flour composite was evaluated. The snack produced was also evaluated for its sensory attributes, proximate composition and invitro-protein digestibility (IVPD). Functional properties results showed an increase in water absorption capacity (WAC), a decrease in oil absorption capacity (OAC), decrease in Bulk Density (BD), swelling power and solubility index with residue addition. Pasting property results showed a drop in the value of peak, trough, breakdown and final viscosity with substitution while set back viscosity increased.Peak temperature decreased, but values for pasting temperature showed no significant difference between the control and the blends. Results for sensory evaluation showed equal preference for overall acceptability. Proximate composition results showed residue addition led to an increase in crude fibre and protein content with a drop in the carbohydrate value. Residue addition did not increase protein digestibility. Addition of fermented maize residue in chin-chin production can be another way of utilizing the fibre rich by-product of the production of fermented maize starch.

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Effect of Partial Substitution of Sodium Chloride with Potassium Chloride and the Use of Garlic (Alium sativum L.) on the Sensory Qualities of Frankfurter

Journal of the Institute of Agriculture and Animal Science ◽

10.3126/jiaas.v26i0.612 ◽

2005 ◽

Vol 26 ◽

pp. 57-64

Author(s):

DB Nepali Karki ◽

NP Roxas ◽

Cessar C Sevilla ◽

Romeo B Obedoza ◽

VL Barraquio

Keyword(s):

Sodium Chloride ◽

Potassium Chloride ◽

Sensory Evaluation ◽

Storage Period ◽

Sensory Characteristics ◽

Partial Substitution ◽

Buffalo Meat ◽

Overall Acceptability ◽

Hedonic Scale ◽

Meat Type

A study was carried out from 1st July to 21st October 2003 at the Institute of Animal Science (IAS), University of the Philippines, Los Baños, College Laguna, Philippines. The study was based on the overall acceptability of substitution of sodium chloride by potassium chloride, frankfurters of broiler chicken and buffalo meat, which were prepared with or without garlic at 1:1 ratio. Frankfurters stored in chiller for over-night after the preparation (as fresh) and stored in freezer (-5 to -7°C) were taken out at 45 and 75 days for sensory evaluation. Ten experienced panelists were involved to evaluate sensory characteristics of frankfurters. Required amount of franks were cut into approximately 2.5 cm size and heated in microwave before serving to the panelists after randomly coding. Each panelist was served with four randomly allocated samples such that in each replication (block), two panelists were assigned. Juiciness, tenderness, color, flavor, off-flavor and overall acceptability were evaluated using the seven point Hedonic scale score card. Type of meat used and the storage period had significant influence in some of the sensory traits, such as juiciness, tenderness and color. Scores for juiciness and tenderness were significantly (P>0.05) higher with chicken franks. However, highly significant (P>0.01) difference was observed for color, favoring buffalo meat franks. Traits such as flavor and overall acceptability had higher scores for chicken than buffalo meat, although scores for offflavor had opposite values; higher with chicken, but was not significantly different. Sensory characteristics for stored products were scored lower than fresh. Color was influenced significantly (P>0.05) by meat type, salt, garlic and also storage period of 75 days. Meat type and storage interaction had significant (P>0.05) differences on juiciness, overall acceptability and tenderness. However, their effects as individual variable were not significant. When garlic was used at 2% level in combination with NaCl+KCl at 1:1 ratio the effectiveness was more pronounced from all respects. However, same percentage of garlic could not produce more acceptable franks with sodium chloride alone. All sensory parameters considered in the study were scored less either for 45 or 75 days storage than the fresh. However, statistically; except for off-flavor, no significant differences were observed between 45 and 75 days. Key words: Frankfurter, substitution, sensory evaluation, panelist, Hedonic scale, garlic J. Inst. Agric. Anim. Sci. 26:57-64 (2005)

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The effects of cold pork loins on the pasteurization temperature in sous vide cooking

BCIT Environmental Public Health Journal ◽

10.47339/ephj.2018.58 ◽

2018 ◽

Author(s):

David Xu Wang ◽

BCIT School of Health Sciences, Environmental Health ◽

Helen Heacock ◽

Lorraine McIntyre

Keyword(s):

Bacterial Count ◽

T Test ◽

Water Bath ◽

Internal Temperature ◽

Cooking Temperature ◽

Group 6 ◽

Group A ◽

Pork Loin ◽

Sous Vide ◽

Group B

Objective: Sous vide is a relatively new cooking method introduced in restaurants in British Columbia. Sous vide cooking involves placing vacuum sealed food inside a temperature controlled water bath or steam convection oven. Unlike conventional cooking, sous vide cooking involves cooking food at a lower temperature (usually < 65°C) with a longer cook time. The low temperature allows chefs to precisely control the changes within the food. Thus sous vide cooked dishes have consistent texture and color, with retained flavor, moistness and nutrients. With all the benefits, sous vide cooking does have some disadvantages. Lower cooking temperature may not be sufficient for bacterial count reduction, resulting in unsafe food. In addition, every validated sous vide menu requires chefs to precisely follow the cooking temperature and cook time. Any deviation can cause the food to not reach the required 6.5 log reduction in bacterial count. The purpose of this experiment was to determine the effect on the internal temperature of cooking-in-process pork loin packages when additional chilled pork loin packages with an internal temperature of 4°C are submerged into the water bath. Methods: Two groups of pork loin packages with data loggers inside (SmartButton) at approximately 4°C were introduced into a 60°C water bath at different intervals. The first group (6 packages) was immersed inside the water bath at time = 0 minute, while the second group (6 packages) was immersed inside the water bath at time = 10 minutes. Both groups were taken out when they were cooked for 31 minutes (at time = 31 minutes and 41 minutes respectively). Water bath temperature was recorded using SPER Scientific 8000024 data logger. Temperature data for pork loin packages was used to calculate the mean lethality achieved by each group. One sample t-test and two sample t-test were used for statistical analysis. Results: There was a more than 3 mean log lethality difference in group A and group B pork loins. Pork loins cooked sous vide style in group A achieved a mean lethality of 5.12 at 31 minutes (range 0.42 to 12.78) while group B pork loins achieved a mean lethality of 8.44 at 31 minutes (range 3.35 to 11.87). With the same cook time, group A had a statistically significantly lower mean lethality than group B pork loins with p value = 0.003. Although statistically inconclusive whether group A pork loins achieved a mean lethality of 6.5, group B pork loins did reach the recommended mean lethality of 6.5. Conclusion: The result indicated when new cold pork loin packages at 4°C are introduced into a cooking-in-process sous vide water bath at 60°C, the lethality of the original pork loin packages in the bath will be lowered if the cook time remains unchanged. However, it is inconclusive on whether the original pork loin packages will reach 6.5 lethality recommended by BCCDC. The new pork loin packages will reach 6.5 lethality if the original cook time is used.

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The Evaluation of Dark Chocolate-Elicited Emotions and Their Relation with Physico Chemical Attributes of Chocolate

Foods ◽

10.3390/foods10030642 ◽

2021 ◽

Vol 10 (3) ◽

pp. 642

Author(s):

Elena Bartkiene ◽

Ernestas Mockus ◽

Ema Mozuriene ◽

Jolita Klementaviciute ◽

Erika Monstaviciute ◽

...

Keyword(s):

Methyl Palmitate ◽

Acid Methyl Ester ◽

Dark Chocolate ◽

Overall Acceptability ◽

Acid Methyl ◽

Physico Chemical ◽

Oleic Acid Methyl Ester ◽

Chemical Attributes ◽

Hedonic Scale ◽

Different Origin

The aim of this study was to evaluate the effect of different origin (Venezuela, Ghana, Peru) dark chocolates on emotions induced for consumers, and to analyse the relationships among overall acceptability (OA), emotions, and physicochemical attributes of the chocolate (fatty acids (FAs) and volatile compounds (VC)). Chocolate-elicited emotions were measured with FaceReader 8 software, scaling 10 emotion patterns (neutral, happy, sad, angry, surprised, scared, disgusted, contempt, valence, arousal). The OA was carried out by using a 10-point hedonic scale, ranging from 1 (extremely dislike) to 10 (extremely like). The obtained results showed that, among all chocolate-elicited emotions, the intensity of “happy” was the highest. In most cases, the influence of the different origin chocolate on the emotions induced for consumers was significant (except on emotions “neutral”, “scared”, and “disgusted”). Significant differences between the tested chocolates OA were not found. The origin of chocolate had a significant effect on most of the identified VC and the content of the main FAs (methyl palmitate, methyl stearate, cis,trans-9- oleic acid methyl ester, and methyl linoleate). Significant correlations between chocolate-elicited emotions and separate FAs and VC were found. Finally, this study showed that the origin of dark chocolate significantly influenced most of chocolate-elicited emotions and physicochemical attributes of chocolate, while separate FAs or VC can be used as chocolate quality indicators related to the chocolate OA, as well as chocolate-elicited emotions.

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Proximate composition, texture analysis and sensory evaluation of keropok lekor formulated with herbs and spices

Food Research ◽

10.26656/fr.2017.3(6).050 ◽

2019 ◽

pp. 635-639

Author(s):

A.F.M.I.U. Zim ◽

A. Akter ◽

M.S. Ali ◽

W.A. Anik ◽

S. Ahmed ◽

...

Keyword(s):

Sensory Evaluation ◽

Proximate Composition ◽

Proximate Analysis ◽

Traditional Food ◽

Sensory Testing ◽

Overall Acceptability ◽

Significant Difference ◽

Sensory Parameters ◽

Hedonic Scale ◽

Common Spices

Keropok lekor a fish-based sausage is a popular traditional food item in Terengganu state, Malaysia. This study aimed to develop a new flavor and taste of keropok lekor. Common spices such as cumin, coriander, cinnamon, cardamom, bay leaf, nutmeg, clove, onion, ginger, garlic were used to develop a new flavor of keropok lekor. A total of 5 samples, including two original and three developed keropok lekor samples were prepared. This study also evaluated the proximate composition of two raw samples (Original and developed). The results of the proximate analysis showed a significant difference (p<0.05) in all parameters except the fiber content. Hardness, springiness, and chewiness of the samples were measured by using TA-XTplus texture analyzer. There was a significant difference in the hardness level between original and developed sample. Finally, sensory evaluation according to six attributes such as color, odors, texture, flavor, taste and overall acceptability was done by 39 panelists. A 7-point hedonic scale ranging from “dislike very much” to “like very much” was employed in sensory testing. There was a significant difference (p<0.05) in all the sensory parameters evaluated. The results showed that most of the respondents preferred the developed samples over the original samples. Developed fried keropok lekor with bread crumb was the most acceptable one.

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The Effect of Seaweed (Eucheuma cottonii) Flour Addition on Physicochemical and Sensory Characteristics of an Indonesian-Style Beef Meatball

International Journal of Food Studies ◽

10.7455/ijfs/10.si.2021.a9 ◽

2021 ◽

pp. 112-120

Author(s):

Aris Sri Widati ◽

Djalal Rosyidi ◽

Lilik Eka Radiati ◽

Happy Nursyam

Keyword(s):

Crude Protein ◽

Sensory Properties ◽

Cooking Loss ◽

Water Holding Capacity ◽

Sensory Characteristics ◽

Crude Fiber ◽

Overall Acceptability ◽

Instrumental Color ◽

Water Holding ◽

Eucheuma Cottonii

The objective of this work was to study the effect of seaweed (Eucheuma cottonii) our addition on physicochemical and sensory characteristics of an Indonesian-style beef meatball. Seaweed flour (SF) was added to meatball batter at 0% (CON), 2.5% (SF2.5), 5.0% (SF5) and 7.5% (SF7.5) in weight/meat weight (w/w) basis. Proximate composition (moisture, crude protein, crude fat, crude fiber and ash content), pH, cooking loss, hardness, water-holding capacity, instrumental color and sensory properties (color, texture, aroma, taste and overall acceptability) of the boiled meatballs were evaluated. The effect of seaweed our addition was very significant (P<0.01) on moisture, crude fat, crude fiber, ash, cooking loss, hardness, water holding capacity, lightness (L*), yellowness (b*) and all sensory properties, and was significant (P<0.05) on crude protein, pH and the redness (a*) of a boiled Indonesian-style beef meatball. The addition of seaweed flour at more than 2.5% resulted in darker meatballs, with less protein and fat, and a stronger seaweed aroma. The results suggest that seaweed flour could be added at 2.5% (w/w) to produce an Indonesian-style beef meatball with enhanced ber content.

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Standardisation of Jackfruit Seed Incorporated Chocolates and its Quality Evaluation

Asian Journal of Dairy and Food Research ◽

10.18805/ajdfr.dr-1662 ◽

2021 ◽

Author(s):

K. Rammya Molu ◽

C.L. Sharon ◽

Seeja Thomachan Panjikkaran ◽

E.R. Aneena ◽

P.S. Lakshmy ◽

...

Keyword(s):

Cocoa Butter ◽

Milk Powder ◽

Sweet Taste ◽

Cane Sugar ◽

Organoleptic Evaluation ◽

Overall Acceptability ◽

Seed Flour ◽

Score Card ◽

Physico Chemical ◽

Hedonic Scale

Background: Chocolate is a popular product that millions enjoy every day due to its unique, rich and sweet taste. Jackfruit seeds rich in nutrients, produce a chocolaty aroma and could be potentially cheap abundant substitute for making chocolate. Hence, the present study was carried out to formulate nutritionally superior chocolates using jackfruit seed. Methods: Jackfruit seed flour was used in varying proportions ranging from 30 to 70 per cent along with 10 to 50 per cent cocoa butter and 20 per cent other ingredients. Other ingredients used were cane sugar, cocoa powder and milk powder. The best treatment was selected through sensory evaluation using a score card with a 9 point hedonic scale. Result: Based on organoleptic evaluation, chocolate prepared with 30 per cent roasted jackfruit seed flour and 50 per cent cocoa butter had a maximum mean score of 8.31 for overall acceptability. The selected roasted jackfruit seed flour based chocolate was subjected to physico-chemical analysis and observed to have moisture (7.62%), carbohydrate (63.03g 100g-1), protein (3.78g 100g-1), fat (1g 100g-1) and fibre (3.13g 100g-1).

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Proximate Composition and Sensory Properties of Complementary Food Formulated From Malted Pre-Gelatinized Maize, Soybean and Carrot Flours

Journal of Food Research ◽

10.5539/jfr.v7n2p17 ◽

2018 ◽

Vol 7 (2) ◽

pp. 17 ◽

Cited By ~ 1

Author(s):

Patience Chisa Obinna-Echem ◽

Lucretia I Barber ◽

Confidence I. Enyi

Keyword(s):

Proximate Composition ◽

Control Sample ◽

Sensory Properties ◽

Soy Flour ◽

Crude Fibre ◽

Overall Acceptability ◽

Hedonic Scale ◽

Flour Blends ◽

Crude Fibre Content ◽

Soy Flour Substitution

The nutrient and sensory properties of malted pre-gelatinized maize supplemented with varying amounts of soy and carrot flour was evaluated. The blends (Malted pre-gelatinized maize flour : Soy flour : Carrot flour) in grams were: A (80: 20: 0), B (73.125: 23.125: 3.75), C (66.250: 26.250: 7.50), D (65.625: 23.125:11.25), E (65: 20:15), F (63.125: 33.125: 3.75), G (63.125:25.625: 11.25), H (60: 25: 15) and I (100:0:0). There were significant (P ≤ 0.5) differences in the proximate composition of the blends. The moisture content ranged between 3.55 - 8.10%. The protein content of the samples increased (P ≤ 0.5) with the increase in soy substitution and varied from 11.61% for the control (sample I) to 21.53% for sample F. The fat, ash and crude fibre content of the blends varied from 1.68 - 10.86, 1.45 - 2.8 and 0.20 - 4.40% respectively. The control had significantly (P ≤ 0.5) the highest carbohydrate content of 75.61%, while it varied between 55.30 and 71.60 % for others. The energy values varied from 360.43 - 405.00 Kcal/g. The sensory scores were based on a 9-point hedonic scale, with 1 and 9 expressed as dislike extremely and like extremely. The assessors’ likeness for the sensory attributes (colour, texture, taste, aroma and general acceptability) was below neither like nor dislike. This study revealed that substitution with soybeans and carrot flours increased the nutrient composition of the malted pre-gelatinized maize, soybean and carrot flour blends. Particularly the soy flour as sample F with the highest soy flour substitution (33. 123g) had significantly the highest protein (21.53%), fat (10.86%) and energy (405 Kcal/g) values. This would be recommended for good quality porridge. Although, the sensory analysis revealed the need for further investigation on processing methods especially the malting process as to enhance the overall acceptability of the product.

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Effect of Storage on Sensory Acceptability and Oxidative Rancidity of Wheat Biscuits Fortified with Asparagus racemosus Root Powder

European Journal of Nutrition & Food Safety ◽

10.9734/ejnfs/2020/v12i630234 ◽

2020 ◽

pp. 13-22

Author(s):

Priyanka Rani ◽

Varsha Rani ◽

Renuka Jandu ◽

A. Lavanya ◽

Reena . ◽

...

Keyword(s):

Peroxide Value ◽

Storage Period ◽

Sensory Characteristics ◽

Asparagus Racemosus ◽

Oxidative Rancidity ◽

Plastic Container ◽

Sensory Acceptability ◽

Overall Acceptability ◽

Whole Wheat ◽

Hedonic Scale

Aims: Asparagus racemosus is locally known as shatavari in India and possess a strong antioxidant and galactogogue activities. This study was aimed to reduce the bitterness of Asparagus racemosus root powder (ARRP) and to analyse the effect of storage on acceptability and oxidative rancidity of ARRP fortified biscuits. Study Design: Biscuits were developed substituting whole wheat flour with 5, 7.5 and 10 per cent of ARRP. Methodology: ARR were blanched to eliminate the bitterness in developed powder. Developed biscuits were analyzed for sensory characteristics using 9-point hedonic scale by 25 semi-trained panelists. Biscuits were packed in plastic zipper bags and stored in an airtight plastic container at room temperature for 90 days. Effect of storage period on sensory acceptability, fat acidity and peroxide value of biscuits was observed. Results: Blanching of A. racemosus roots at 80ºC temperature for 3 minutes reduced the bitterness of developed powder considerably. Results showed that biscuits were found to be ‘liked moderately’ on 9-point hedonic scale. During storage period of 90 days, the scores of sensory characteristics were decreased gradually for colour, appearance, aroma, taste, texture and overall acceptability, however biscuits were found acceptable by panellist. The increase in oxidative rancidity with the advancement of storage period was observed in terms of fat acidity (mg of KOH/g) and peroxide value (meq of O2/kg) in control as well as ARRP biscuits however, this increase was witnessed less in A. racemosus fortified biscuits than control. Conclusion: ARRP upto 10 per cent can be successfully used in the development of products with increased shelf life along with galactogogue activity.

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