scholarly journals Effect of sweeteners and storage on compositional and sensory properties of blackberry jams

2020 ◽  
Vol 246 (11) ◽  
pp. 2187-2204
Author(s):  
Csilla Benedek ◽  
Zsanett Bodor ◽  
Vanda Tímea Merrill ◽  
Zoltán Kókai ◽  
Attila Gere ◽  
...  
Keyword(s):  
Storage Time ◽  
Antioxidant Properties ◽  
Electronic Tongue ◽  
Storage Period ◽  
Sensory Attributes ◽  
Sensory Properties ◽  
Data Matrix ◽  
Taste Intensity ◽  
Sugar Alcohols ◽  
And Storage

Abstract Sweeteners of natural sources, such as sugar alcohols, are in the centre of growing interest. Their impact on the phytochemicals, antioxidant and sensory properties of blackberry jams were investigated during a 9-months storage period. Measurements on jams prepared with different sugars and sugar alcohols (sucrose, fructose, xylitol and erythritol) were performed at the date of preparation and in the 1st, 3rd, 6th, 9th month. Total polyphenol content, individual polyphenols, antioxidant properties, anthocyanin content and CIE L*a*b* colour were determined. Sensory profiles were determined by a trained panel. Sensory attributes were compared by the results of the electronic tongue and nose. Sweeteners had a significant impact on physicochemical properties and sensory attributes. Storage time also affected the sensory and compositional properties of jams. Changes in antioxidant properties did not follow a clear trend during the storage period, and antioxidant capacity was not affected significantly by the sweetening agent, but showed a significant decline from the 6th month. A positive effect of xylitol was observed in terms of a low degradation rate of anthocyanins, while their decomposition was the fastest in the fructose-containing preparation. Jams sweetened with erythritol reached significantly lower values for some sensory attributes (blackberry flavour and general taste intensity), however, they showed more intense red colour. Multiple factor analysis enabled the identification of the effect of sweetener and storage time on the pattern of the sensory data matrix. Classification according to individual sweeteners was performed successfully by the electronic tongue, but not by electronic nose.

scholarly journals Processing Characteristics and Sensory Attributes of Bacon Manufactured From Seven Value-Added Cuts of Beef

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
S. Chalupa-Krebzdak ◽  
B. M. Bohrer
Keyword(s):  
Repeated Measures ◽  
Random Effect ◽  
Value Added ◽  
Storage Period ◽  
Sensory Attributes ◽  
Fixed Effect ◽  
Sensory Properties ◽  
Cooking Loss ◽  
Great Opportunity ◽  
Short Plate

ObjectivesThere is great opportunity for the beef industry to add value to cuts that are currently marketed as low value cuts (i.e., cuts from the chuck, round, and flank/plate). The objective was to evaluate the processing characteristics and sensory attributes of bacon manufactured from seven different cuts of beef.Materials and MethodsThe seven cuts evaluated included the brisket (IMPS#120), the clod heart (IMPS#114E; divided horizontally into two halves; referenced as the wide half or silverskin side and the narrow half or non-silverskin side), the flank (IMPS#193), the outside flat (IMPS#171B), and the short plate (IMPS#121A; broken down into the deboned short rib half and the navel half). The cuts were injected using a standard commercial bacon cure (water, salt, corn syrup solids, sodium phosphate, sodium erythorbate, sodium nitrate, sodium bicarbonate, and glycerin; Herman Laue Spice Company Inc.; Uxbridge, Ontario, Canada) to a targeted rested pump uptake of approximately 20% (± 3%). The injected cuts were cooked to an internal temperature of 62°C in a smokehouse (ScottPec, Guelph, Ontario). Following cooking, cuts were cooled to 4°C and then sliced into 4.0 mm slices using a deli slicer. Slices were vacuum packaged, boxed, and stored at 4°C for zero, thirty, sixty, or ninety days. Following the allotted storage period, slices were stored at –20°C until evaluation of sensory attributes and cooking loss. Slices were cooked at 204°C for 15 min in a convection oven. Processing characteristics were conducted in six or seven replications for each cut. Sensory evaluation was conducted on three randomly selected samples for each cut at each of the four storage times (the same samples within each cut was used at each storage time). Processing data were analyzed using PROC GLIMMIX of SAS (v9.4) with fixed effect of cut and random effect of replication. A trained descriptive sensory panel of 6–8 panelists evaluated the differences in oxidative flavor and aroma (using a 4-pt nominal scale), and differences in beef flavor intensity, muscle fiber toughness, and connective tissue amount (using magnitude estimation). Sensory data were analyzed as repeated measures using PROC GLIMMIX of SAS (v9.4) with fixed effect of cut, storage day, and their interaction, and random effects of session, panelist, and replication.ResultsAs expected, dimensions and processing weights differed (P < 0.01) among cuts. Rested pump uptake was not different (P = 0.29) among cuts. Smokehouse yield was greater (P < 0.05) for the brisket, outside flat, and short plate (both halves) compared with the clod heart (both halves) and flank. Bacon slice cooking loss and sensory characteristics are presented in Table 4.ConclusionOverall, this research indicated that a variety of beef cuts can be used to manufacture beef bacon. The differences in sensory properties that were quantified in this study, allow manufacturers to tailor their cut selection to the sensory properties most valued by their consumers. All cuts exhibited oxidative stability when stored up to 90 d.Table 4Bacon slice cooking loss and sensory analysis of bacon manufactured with different beef cuts. Main effects of cut after 0, 30, 60, and 90 d of storage

scholarly journals The influence of selected preservation methods and storage time on the content of antioxidants in blackthorn (Prunus spinosa L.) fruits

2019 ◽  
Vol 74 (1) ◽  
pp. 53-62
Author(s):  
KATARZYNA OLESIŃSKA ◽  
DANUTA SUGIER ◽  
ŁUKASZ SĘCZYK
Keyword(s):  
Room Temperature ◽  
Storage Time ◽  
Antioxidant Properties ◽  
Iron Ions ◽  
Polyphenol Content ◽  
Total Polyphenols ◽  
Dried Fruits ◽  
Prunus Spinosa ◽  
Freeze Dried ◽  
And Storage

The aim of the study was to determine the influence of selected methods of preservation and storage time on the content of antioxidants in blackthorn fruit (Prunus spinosa L.). Preserved fruits were stored for 13 and 26 weeks without light at room temperature (freeze-dried and convection dried) and at –20°C (frozen samples). It was shown that both the method of preservation and the storage time had significant influence on the content of polyphenols (anthocyanins, flavonoids, total polyphenols) and antioxidant properties (Fe3+ reduction strength) of blackthorn fruit. As the storage time progressed, the anthocyanins content decreased in all preservation variants. In the case of frozen fruit after 26 weeks of storage, the content of flavonoids (by 12.5%), total polyphenols (by 48%) and the ability to reduce the iron ions were increased (by 55%). In turn, in the dried fruits after this period, the anthocyanins content, the polyphenol content and reduction strength were reduced. The highest values of the parameters evaluated after the assumed storage time has been demonstrated in lyophilizates.

scholarly journals Physiological quality of pink pepper seeds (Schinus terebinthifolia Raddi.) as a function of storage

2021 ◽  
Vol 38 (1) ◽  
pp. 144-157
Author(s):  
Thaísa De Oliveira Silveira ◽  
Madelon Rodrigues Braz ◽  
Gilmara Pires de Moura Palermo ◽  
Tiago Böer Breier
Keyword(s):  
Moisture Content ◽  
Storage Time ◽  
Storage Period ◽  
Seed Storage ◽  
Dry Weight ◽  
Native Forest ◽  
Alternative Source ◽  
Physiological Quality ◽  
And Storage

Seeds of native forest species for food and seedling production have a growing demand that impacts the need for studies involving seed storage in order to maintain good levels of germination quality. Thus, scientific analyzes that explore the physiological potential of the seeds of these species are necessary, especially for the pink pepper (Schinus terebinthifolia Raddi.), a species used as an alternative source of income for traditional communities and which has been arousing interest due to the consumption of its fruits as a condiment in the national and international market. This work aimed to assess the physiological quality of pink pepper seeds according to the storage period and seed size. The seeds came from a rural settlement, a pioneer in the extraction of pink pepper, in the state of Rio de Janeiro, Brazil. The seeds were evaluated for moisture content, germination, first count, length and dry weight of the germinated seedlings, during the period of time that they remained stored and the size of the seeds. The results allowed to conclude that: i) the germinative percentage of the stored pink pepper seeds decreased over the months; ii) the moisture content of the seeds decreased over the months evaluated iii) the different sizes of seeds did not show differences in germination and storage time and iv) values of length and dry weight of the seedlings did not differ according to the period of storage.

scholarly journals An electronic tongue as a classifier tool for assessing perfume olfactory family and storage time-period

Talanta ◽  
2020 ◽  
Vol 208 ◽  
pp. 120364
Author(s):  
Amira Jarboui ◽  
Ítala M.G. Marx ◽  
Ana C.A. Veloso ◽  
Daniel Vilaça ◽  
Daniela M. Correia ◽  
...  
Keyword(s):  
Storage Time ◽  
Electronic Tongue ◽  
Time Period ◽  
And Storage

scholarly journals Influence of Carrot Pulp Fortified with Different Concentrations of Apple Pulp on Blended Jam

2017 ◽  
Vol 60 (2) ◽  
pp. 92-101
Author(s):  
Ishfaq Ahmed ◽  
Shermat Ullah ◽  
Arsalan Khan ◽  
Muhammad Ayub ◽  
Baber Shamrez ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Physicochemical Properties ◽  
Ambient Temperature ◽  
Reducing Sugars ◽  
Storage Period ◽  
Sensory Attributes ◽  
The Other ◽  
Overall Acceptability ◽  
And Storage ◽  
Statistical Results

The aim of this study was to evaluate various combination and effect of storage period on thequality of carrot apple blended jam at ambient temperature (18-25 °C). The treatments were CA0, CA1,CA2, CA3, CA4 and CA5. All the treatments were examined for physicochemical properties i.e., total solublesolids (TSS), pH, reducing sugars (%), percent acidity, non-reducing sugars (%), ascorbic acid (mg/100 g),as well as for sensory properties at fifteen days interval for a total storage period of 90 days. Significantincrease (P<0.05) were examined in TSS (67.45-70.40 °brix), acidity (0.64-0.80) and reducing sugars(16.64-27.78). While, significant decrease (P<0.05) were examined in pH (3.63-3.44), non reducing sugars(45.04-27.69), ascorbic acid (7.81-5.52 mg/100 g), colour (7.33-4.35), taste (7.40-4.12), texture (7.22-4.06) and overall acceptability (7.36-4.14). Statistical results concluded that treatment and storage has asignificant effect on the quality and stability of carrot pulp and apple pulp blend jam. Results revealed thatgood quality jam could be prepared with equal amount of carrot and apple pulp, which showed withminimum damage to physiochemical and sensory attributes among the other treatment even after 90 daysof storage.

scholarly journals Pengaruh Media Dan Periode Simpan Terhadap Viabilitas Benih Cengkeh Tuni (Syzygium aromaticum L.)

2018 ◽  
Vol 14 (2) ◽  
pp. 97-104
Author(s):  
Marselina Noya ◽  
Johan Riry ◽  
Marthini Lesilolo
Keyword(s):  
Storage Time ◽  
Germination Rate ◽  
Storage Period ◽  
Germination Percentage ◽  
Syzygium Aromaticum ◽  
Storage Media ◽  
Randomized Design ◽  
Vigor Index ◽  
The Media ◽  
And Storage

This study aims to examine the influence of the media and the storage period on the viability of clove seeds. The study was conducted at the Ambon Plant Crops Protection and Protection Center laboratory. The study used a factorial completely randomized design with two types of factors and three replications. The storage media consists of 3 levels, namely: Without the storage media, the media for storing rice husk and the media for storing sawdust. The second factor is the storage period consists of 4 levels, namely: 10 days storage, 20 days storage, 30 days storage and 40 days storage. The parameters measured were germination power, germination rate, and vigor index. Storage media and storage period significantly affected germination and vigor indexes but did not significantly affect germination rates. The results showed that the sawdust storage media was a good medium for storing clove seeds (Syzygium aromaticum L.). This can be seen in the results of the average germination of clove seeds stored in powder storage media with a storage time of 10 days giving better results of 85% compared to rice husks at a storage time of 10 days with a germination percentage of 65%.  Keywords: clove seeds, save media, save period   ABSTRAK Penelitian ini bertujuan untuk menguji pengaruh media dan periode simpan terhadap viabilitas benih cengkeh. Penelitian dilaksanakan di laboratorium Balai Besar Perbenihan dan Proteksi Tanaman Perkebunan Ambon. Penelitian menggunakan rancangan acak lengkap pola faktorial dengan dua macam faktor dan tiga kali ulangan. Media simpan terdiri dari 3 taraf yaitu: Tanpa media simpan, media simpan sekam padi dan media simpan serbuk gergaji. Faktor kedua adalah periode simpan terdiri dari 4 taraf yaitu: penyimpanan 10 hari, penyimpanan 20 hari, penyimpanan 30 hari dan penyimpanan 40 hari. Parameter yang diukur adalah daya berkecambah, laju perkecambahan dan indeks vigor. Media simpan dan periode penyimpanan berpengaruh nyata pada persentase perkecambahan dan indeks vigor tetapi tidak berpengaruh nyata pada laju perkecambahan. Hasil penelitian menunjukan bahwa media simpan serbuk gergaji merupakan media yang baik bagi penyimpanan benih cengkeh (Syzygium aromaticum L.). Hal ini terlihat pada hasil rata-rata daya berkecambah benih cengkeh yang disimpan pada media simpan serbuk dengan lama penyimpanan selama 10 hari memberikan hasil yang lebih baik yakni 85% jika dibandingkan dengan sekam padi pada lama penyimpanan 10 hari dengan persentase perkecambahan 65%. Kata Kunci: benih cengkeh, media simpan, periode simpan

scholarly journals Production of value-added broiler nugget enriched with dietary fiber from oat meal

2020 ◽  
Vol 49 (1) ◽  
pp. 71-82
Author(s):  
A Akhter ◽  
MM Hossain ◽  
M Habib ◽  
MA Hashem ◽  
MS Ali
Keyword(s):  
Dietary Fiber ◽  
Wheat Flour ◽  
Crude Protein ◽  
Dry Matter ◽  
Storage Time ◽  
Storage Period ◽  
Broiler Meat ◽  
Overall Acceptability ◽  
A Value ◽  
And Storage

An experiment was conducted to find out the effect of oat meal as a source of dietary fiber to formulate enriched broiler nugget. For this purpose, nuggets were prepared into four different groups such as treatment 1: 10% wheat flour nugget, treatment 2: 20% wheat flour nugget, treatment 3:10% oat meal nugget and treatment 4: 20% Oat meal nugget. All parameters were analyzed at 0, 15th and 30th days of storage period. The proximate composition of different nuggets batter was analyzed and highly significant differences were found in dry matter (%) and pH. Dry matter was lower, while pH was higher in control nugget (Treatment 1). Significant differences were found in crude protein (%), ether extract (%) among different nuggets, as well as among different storage time. Significantly higher DM (%), Ash (%) and EE (%) was found in broiler meat with 20% oat meal, while higher crude protein (%) were found in broiler meat+10% wheat flour. Crude protein (%) and DM (%) increased, while Ash (%) and EE (%) decreased with increase of storage time.  The storage period had significant effect on different biochemical (FFA, POV and TBARS value) and microbial (TVC, TCC and TYMC) tests. In all cases, the values were increased with increase of storage time. The surface color (CIE L*, a*, b*) of nuggets of different treatments at different storage period were measured.  No significant differences in b* value were found among broiler meat nuggets and storage time. On the other hand, different types of nuggets and storage period had a significant effect on L* and a* value. Significantly higher a* value was found in broiler meat with 10% wheat flour (T1). In sensory analysis, no significant differences were found in flavor, off-flavor, juiciness, tenderness and overall acceptability among four types of sausages. It could be concluded that addition of oat meal as a source of dietary fiber did not differ the overall acceptability of broiler meat nuggets compare to broiler meat nuggets with wheat flour. Bang. J. Anim. Sci. 2020. 49 (1): 71-82

scholarly journals Storage Stability of Probiotic Soy Yoghurts with Enzyme Hydrolyzed African Breadfruit and Rice Additives

2021 ◽  
pp. 110-121
Author(s):  
Lucretia I. Barber ◽  
Ngozika C. Onuegbu ◽  
Chijioke M. Osuji ◽  
Chika C. Ogueke
Keyword(s):  
Storage Time ◽  
Storage Stability ◽  
Titratable Acidity ◽  
Sensory Properties ◽  
Standard Methods ◽  
Overall Acceptability ◽  
African Breadfruit ◽  
Fermented Product ◽  
Ph Decrease ◽  
And Storage

Aims: This study investigated the effect of culture type and storage time on pH, titratable acidity (%Lactic acid), viscosity and syneresis, probiotic viability and sensory properties of probiotic soy yoghurts with enzyme hydrolyzed African bread fruit (HABF) and rice syrup. Methodology: Three sets of Soy-HABF Yoghurt were formulated by supplementing soymilk with 4% HABF and the addition of enzyme hydrolyzed rice syrup. The formulations were inoculated separately with Bifidiobacterium bifidum and Lactobacillus acidophillus as mono- and co-cultures and fermented at 42 °C for 8 h. Using standard methods, the samples were analyzed after fermentation representing day 1 and on the 5th, 10th, 15th and 20th days of storage at 4⁰ C. Results: Culture type and the storage time had significant (P≤0.05) effect on physicochemical, probiotic count and sensory properties of the probiotic soy-HABF yoghurt. pH decreased significantly (P ≤ 0.05) with storage time from 4.36 - 4.06, 4.30 – 3.97 and 4.35 - 4.26 for B, L and BL (B. bifidum, L. acidophilus and the co-culture of B. bifidum, and L. acidophilus fermented samples). L. acidophilus had highest pH decrease. Titratable acidity, viscosity and syneresis index increased significantly (P≤0.05) with increase in storage time. Probiotic counts varied from 7.72-6.54 and 8.56 – 7.70 Log CFU/ml for B. bifidum and L. acidophilus respectively in the mono-culture samples B and L and from 7.66 – 5.65 and 7.90 – 6.57 Log CFU/ml for B.bifidum and L. acidophilus in sample BL. Assessors’ degree of likeness for the aroma, appearance, taste and texture of the probiotic soy-HABF yoghurt varied from neither like nor dislike to moderate likeness. The overall acceptability indicated that the L. acidophilus fermented product (sample L) was more acceptable to the assessors within the first 5 days of storage. Conclusion: This study have shown that B.bifidum and L.acidophillus retained a viability of > log 6 within 15 days of storage. The physicochemical and sensory characteristics of soy/HABF yoghurt were also at optimum within the first 5 days at 4⁰ C. 

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