Effects of Anthocyanin Supplementation and Ageing Time on the Volatile Organic Compounds and Sensory Attributes of Meat from Goat Kids

The aim of this study was to assess the effects of dietary anthocyanin addition on volatile compounds of meat from goat kids during ageing. For this work, 60 male and female kids were divided into two groups: red orange and lemon extract (RLE group; n = 30), which received an RLE extract (90 mg/kg of live weight); and control (CON group; n = 30). The phytoextract in dry powder form was rich in bioflavonoids such as flavanones (about 16%) and anthocyanins (about 3%). After slaughtering, the longissimus thoracis et lumborum muscle was aged at 4 °C. The volatile organic compound (VOC) and sensorial analyses were carried out at 1, 3 and 7 days. A total of 10 chemical families were identified during the ageing process. Aldehydes were the most abundant VOC, followed by ketones and alcohols. Their contents increased during the process, showing after 7 days of ageing mean values of 20,498, 2193 and 1879 ng/g of meat, respectively. Regarding dietary effects, carboxylic acids, hydrocarbons and thiols presented significant differences between treatments, with higher carboxylic acid contents observed in RLE samples (437 vs. 467 ng/g of meat for CON and RLE batches, respectively; p < 0.05). On the contrary, hydrocarbons (436 vs. 254 ng/g of meat for CON and RLE batches, respectively) and thiols (160 vs. 103 ng/g of meat for CON and RLE batches, respectively) displayed significantly (p < 0.01) higher amounts in CON compared to the RLE group. Regarding ageing time, the tenderness, juiciness, odour and overall assessment parameters showed significantly higher scores at the end of the whole process (p < 0.05). On the other hand, only odour displayed significant differences between treatments, reaching higher scores in CON samples (p < 0.05). Therefore, ageing time improved the sensorial properties (tenderness, juiciness, odour and overall assessment) and the VOC content, whereas the inclusion of anthocyanins in the kids’ diet did not have a great impact on the properties of aged meat.

Sensorial, physicist-chemistries and microbiological analyses of samples of honeys produced for Apis mellifera in the region of the Cocais Maranhenses, Maranhão State, Brazil

This work had as objective to proceed sensorial analyses, microbiological physical-chemistries and, of comparative form, the honeys, collected for the producers and researcher, of mellifera Apis bee of the cities of Codó and Itapecuru-Mirim, pertaining to the region of the Cocais, Maranhao State. It observed in the first, collected in such a way for the producer how much for the researcher, presented a bigger water text (average humidity of 21,05%) when compared with the second (20.98%), making it difficult its storage, therefore the high water text of the product diminishes its useful life of shelf. For total acidity, the value highest was for the honey produced in Codó (79.19% to 91.80% b), when compared with the honey produced in Itapecuru-Mirim (37.78% to 48.36% b), what it can be explained by the temperature difference, being higher in Codó, For the values of pH the honey of Itapecuru_Mirim was gotten presenting lower value (3,2). For reducing sugars, the honey of Itapecuru - Mirim it presented average of next values (64.14% b - 64.20%) to the demanded minimum as standard. For the values of sacarose the samples of Codó, had presented minors average values of (23.59% b 24.29%); in the parameter you sweeten totals the samples of Itapecuru_Mirim presented greater average index (93,73). For the HMF analyses the samples of Codó had presented average values (67,77a the 76,33b). For the too much studied parameters it did not have significant difference between treatments.

Sensorial character of beer dry hopped with new Czech genotypes of hops with a specific flavor

In the Czech Republic breeding of new hop varieties is traditionally performed. Its properties correspond with the requirements and interests of end users, in particular hop growers, brewers and especially beer consumers, who with an increasing favor taste new types of beer. The study presents 8 new promising aromatic genotypes, whose major part (Uran, Juno, Ceres, Jupiter, Eris and Most) is already in the registration process of ÚKZÚZ of the Czech Republic (Central Institute for Supervising and Testing in Agriculture CISTA). The tested genotypes were described using brewing tests. Regarding the character of the tested hop varieties, there was chosen a uniform and simple infusion recipe with a top fermentation and dry hopping. The final beer samples were evaluated using chemical and sensorial analyses focusing on a hop aroma. All beer samples were rated as very good, the overall impression of the samples on the scale of 1 to 9 ranged from 2.9 to 3.1. The hop aroma and also bitterness character of the final beer samples were evaluated of high quality. Depending on the hop profile of the beer samples, there were suggested beer styles where the given varieties can be successfully used. These results indicate a high potential of these varieties for the use in brewing practice. Finally, the probability of perceiving a particular hop aroma in beer given by perceiving the aroma in hops was determined by Bayes’ theorem. It was found that probability particularly for spicy, resinous, herbal, citrusy, floral, fruity and grassy aroma was 100, 100, 100, 40, 38, 43, and 100%, respectively.

Pawpaw Hybrid Genotypes (Asimina triloba (L.) Dunal) Cultivated in the Bucharest Area

Pawpaw or Northern banana (Asimina triloba (L.) Dunal) is the only representative of the Annonaceae family that can be cultivated in temperate areas. The increasing demands from the consumers for this nearly unknown fruit with high nutraceutical potential require specific researches. The aim of this study is to present the fruits pomological characteristics for 23 genotypes analyzed, cultivated in the Bucharest area. For each genotype yield, fruit size, average number of seeds per fruit, average weight of seeds and seeds size were measured. Fruit biochemical analyses as dry matter, total soluble solids, ascorbic acid content, acidity, were done for several genotypes. Fruit quality evaluation through sensorial analyses was conducted for 13 genotypes. The most valuable genotypes from the Experimental field according to the analyses performed and the consumer’s preferences are taken in consideration for further research.

Determination of Biochemical Composition in Peach (Prunus persica L. Batsch) Accessions Characterized by Different Flesh Color and Textural Typologies

The rising interest in beneficial health properties of polyphenol compounds in fruit initiated this investigation about biochemical composition in peach mesocarp/exocarp. Biochemical evaluation of phenolic compounds and ascorbic acid were quantified through high-performance liquid chromatography (HPLC) in relation to three flesh colors (white, yellow and red) and four flesh typologies (melting, non-melting, slow softening and stony hard) within six commercial cultivars and eight breeding selections of peach/nectarine in 2007. While in 2008, quality and sensorial analyses were conducted on only three commercial cultivars (‘Big Top’, ‘Springcrest’ and ‘Ghiaccio 1’). The red flesh selection demonstrated the highest levels of phenolic compounds (in mesocarp/exocarp) and ascorbic acid. Total phenolic concentration was approximately three-fold higher in the exocarp than the mesocarp across all accessions. Breeding selections generally reported higher levels of phenolics than commercial cultivars. Flesh textural typologies justified firmness differences at harvest, but minimally addressed variations in quality and phenolic compounds. Flesh pigmentation explained variation in the biochemical composition, with the red flesh accession characterized by an abundancy of phenolic compounds and a high potential for elevated antioxidant activity. Sensorial analyses ranked the cultivar with high soluble solids concentration:titratable acidity (SSC:TA) and reduced firmness the highest overall. Red flesh is a highly desirable trait for breeding programs aiming to improve consumption of peaches selected for nutraceutical properties.

The effect of chia (Salvia hispanic L.) flour as a substitute for fat in gluten-free bread

Purpose The preparation of gluten-free bread is a challenge because the gluten in wheat is the main ingredient responsible for the retention of the gases which cause the bread to rise. This paper aims to develop breads without gluten and fat, and to evaluate the effect of the use of chia (Salvia hispanic L.) flour on the physical, nutritional and sensory properties of the breads that were developed. Design/methodology/approach Three formulations were developed with different proportions of chia flour (2.5, 5 and 7.5%), fat-free. Physiochemical, sensorial analyses were performed out in three repetitions (p-value = 0.05). Findings In the nutritional assessment, the results demonstrated that 7.5% chia showed higher levels of protein (15.1%), lipid (3.43%), total fiber (7.04%) and lower levels of carbohydrates (22.49%), with significant nutrient enrichment (p-value = 0.05). The specific volume and the elevation of the dough decreased with the addition of chia flour. In the sensorial analysis, the treatments with chia flour showed no significant difference regarding flavor and texture when compared to the standard. The addition of chia improved the nutritional and sensory properties (p-value = 0.05). Originality/value The chia flour improved the nutritional characteristics of the breads, in the reduction of carbohydrate content and the increase in the content of protein, minerals and fiber. It presented good acceptability and good nutritional characteristics, providing a healthy and differentiated variation in this segment.

Effects of Chickpea-Based Leavening Extract on Physical, Textural and Sensory Properties of White Wheat Bread

This study aimed to investigate the effects of chickpea-based leavening extract (CLE) on certain white wheat bread characteristics. CLE increased the loaf volume, height and redness while it reduced the moisture, lightness and yellowness of the bread. Although crumb hardness of CLE bread was observed to be higher than commercial baker’s yeast (CBY; Saccharomyces cerevisiae) bread on the first day, this value did not show any significant difference during two days storage. Adhesiveness and chewiness of CLE bread were affected significantly, whereas springiness was not. Loaf volume, symmetry, crust colour, crust structure, texture, mouthfeel, odour, general acceptability and purchasing intent of CLE bread was scored higher as a result of sensorial analyses. We concluded that CLE could be used in breadmaking as an alternative to CBY for consumers who want a different taste and flavour. The use of CLE can be made widespread by performing and standardising the commercial production.

Mince from Tilapia-Backbone: Effects of Washing and Cryoprotectant Addition during Frozen Storage

Mince obtained from tilapia (Oreochromis niloticus) (backbone) was evaluated; the effect of washing and the addition of a commercial cryoprotectant on the quality of the mince obtained were also assessed. Physicochemical, microbiological and sensorial analyses were carried out at 0, 15, 30, 45, 60, 90, 120 and 180 days of frozen storage (-20 ºC). During washing treatment 91% of lipids was removed from the mince (p<0.05). The proximal composition was stable during the storage time (p>0.05). Parameters such as L* and “θ” increased while a*, b*, chroma and TBARS decreased due to the washing treatment (p<0.05). The cryoprotectant effect resulted in a decrease of L*, “θ” (Hue) and TBARS (p<0.05). The addition of the cryoprotectant caused a significant decrease of L*, “θ” and TBARS. During the storage period, the proximate composition was stable and the microbial load remained below the official limits. The panelists detected changes on the odor, color and texture in the mince evaluated. Results suggest that the washing treatment improved the stability of the mince compared to the addition of cryoprotectant.