Desenvolvimento de Massa de Pizza Enriquecida com Hibisco

Atualmente, busca-se constantemente o desenvolvimento de novos produtos para atender as necessidades dos consumidores, sendo a utilização do hibisco (Hibiscus sabidariffa L.) na produção alimentícia uma forma simples e econômica de agregar sabor aos produtos e beneficiar a saúde de quem os consome. O presente trabalho teve como objetivo desenvolver uma massa de pizza enriquecida com farinha de folhas de hibisco (FFH). Adicionou-se diferentes concentrações da FFH às massas de pizza, as quais foram submetidas às análises sensoriais e físico-químicas. Não houve diferença estatística significativa entre a formulação I (massa de pizza enriquecida com 2% de FFH) e a formulação II (massa de pizza enriquecida com 4% de FFH) em relação à aceitação global. Para as análises físico-químicas, as formulações obtiveram teores baixos de umidade (F1 - 18,07 ± 1,07; F2 - 19,3 ± 0,31) e um bom conteúdo de cinzas (F1 - 1,45 ± 0,06; F2 - 1,57 ± 0,10). Para o pH e acidez, os resultados obtidos estão de acordo com o preconizado pela legislação vigente, com resultados que variaram de 5,0 a 6,0 para o pH, e de 1,7 a 2,8, para a acidez total titulável. Constatou-se que ambas amostras obtiveram boa aceitação por parte dos provadores, assim como uma intenção de compra satisfatória. Em relação às análises físico-químicas, verificou-se que os produtos desenvolvidos obtiveram características semelhantes a outras massas enriquecidas, estando de acordo com o preconizado nas legislações para este produto. Palavras-chave: Desenvolvimento de Produtos. Hibiscus sabidariffa L. Produto de Panificação. Abstract Currently, there is a constant search for the development of new products to meet the consumer’s needs, and the use of hibiscus (Hibiscus sabidariffa L.) in food production is a simple and economical way to add flavor to products and benefit the health of those who consume them. The present work had as objective to develop pizza dough enriched with hibiscus leaf flour (HLF). Different concentrations of HLF were added to the pizza masses, which were submitted to the sensorial and physicochemical analyzes. There was no statistically significant difference between formulation I (2% HLF enriched pizza mass) and formulation II (4% HLF enriched pizza mass) in relation to the overall acceptance. For the physicochemical analysis, the formulations obtained low levels of humidity (F1 - 18.07 ± 1.07; F2 - 19.3 ± 0.31) and a good ash content (F1 - 1.45 ± 0, 06; F2 - 1.57 ± 0.10). For pH and acidity, the results obtained are in accordance with the recommendations of the current legislation, with results ranging from 5.0 to 6.0 for pH, and from 1.7 to 2.8, for total titratable acidity. It was found that both samples obtained good acceptance by the tasters, as well as a satisfactory purchase intention. Regarding the physical-chemical analysis, it was found that the products developed obtained characteristics similar to other enriched masses, being in accordance with the recommendations in the legislation for this product. Keywords: Product Development. Hibiscus Sabidariffa L. Bakery Product.

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Promising Physical, Physicochemical, and Biochemical Background Contained in Peels of Prickly Pear Fruit Growing under Hard Ecological Conditions in the Mediterranean Countries

BioMed Research International ◽

10.1155/2019/9873146 ◽

2019 ◽

Vol 2019 ◽

pp. 1-8

Author(s):

Mohammed Bourhia ◽

Hamza Elmahdaoui ◽

Riaz Ullah ◽

Ahmed Bari ◽

Laila Benbacer

Keyword(s):

Titratable Acidity ◽

Ash Content ◽

Prickly Pear ◽

Carotenoid Content ◽

Total Carotenoid ◽

Total Carotenoid Content ◽

Mediterranean Countries ◽

Polyphenolic Content ◽

Total Titratable Acidity ◽

Total Polyphenolic Content

Background. Prickly pear (Opuntia spp.), called Barbary fig, is a cultivated species springing from family Cactaceae. It is native to Mexico and has been naturalized in other continents, especially the Mediterranean countries (North Africa). The aim of the study was to investigate the physical, physicochemical, and biochemical criteria of peels of three Moroccan prickly pear varieties (Aakria, Derbana, and Mles) growing in the Rhamna regions (dry area). Material and Methods. Both physicochemical characteristics (humidity, water activity, Brix, ash content, pH, and total titratable acidity) and biochemical characteristics (total carotenoid content, betalain content, total polyphenolic content, and ascorbic acid content) were were studied according to previously reported methods. Results. Regarding the physiochemical criteria, the moisture of the fresh peels of studied varieties ranged from 81.59 ± 0.02 to 83.47 ± 0.02%. The water activity (aw) ranged from 0.862 ± 0.001 to 0.872 ± 0.001. The values of Brix varied from 14.69 ± 0.05° Bx to 15.80 ± 0.03° Bx. pH values varied from 5.13 ± 0.01 to 5.32. The total titratable acidity values ranged from 0.130 ± 0.008 to 0.196 ± 0.014 g of citric acid/100 g of FM (fresh matter). The ash content values ranged from 8.92 ± 0.10 to 11.04 ± 0.06 g/100 g of FM. Regarding the biochemical criteria, the total carotenoid content ranged from 2.29 ± 0.01 to 2.87 ± 0.01 μg/g of FM. The total betalain content ranged from 6213.46 ± 58.86 to 8487.19 ± 51.71 μg/100 g of FM. The total polyphenolic content varied from 160 ± 3.55 to 243.79 ± 5.55 mg GA E/100 g of FM. The ascorbic content ranged from 58.21 ± 0.24 to 74.72 ± 0.17 mg/100 g of FM. Conclusion. The findings of physicochemical and biochemical criteria of the investigated varieties growing in Moroccan drylands showed promising results in terms of studied parameters.

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Refrigerated storage of fresh-cut marolo (Annona crassiflora mart.)

REVISTA BRASILEIRA DE AGROTECNOLOGIA ◽

10.18378/rebagro.v10i2.8047 ◽

2020 ◽

Vol 10 (2) ◽

pp. 44-54

Author(s):

Flávia Della Lucia ◽

Eric Batista Ferreira ◽

Sandra Maria Oliveira Morais Veiga ◽

Luciana Azevedo ◽

Marcela Aparecida Miranda Moreira ◽

...

Keyword(s):

Storage Time ◽

Titratable Acidity ◽

Soluble Solids ◽

Physical Chemical ◽

Significant Difference ◽

Thermotolerant Coliforms ◽

Fresh Cut ◽

Annona Crassiflora ◽

Storage Temperatures

Marolo is a fruit typical of the Brazilian Savanna that is highly appreciated for its exotic flavour, nutritional value and sensory attributes. This study aimed to assess the quality of fresh-cut marolo by checking for possible changes in physical, chemical, microbiological and sensorial characteristics during cold storage (12 days at 0°C, 5°C and 10°C). Firmness varied based on storage time; the fruit softened on the 8th day and then increased in hardness until the end of the study. The lowest storage temperatures reduced the darkening rate of this product. No variations in the levels of soluble solids (12.7 to 14.6°B) or total phenolics (741.06 to 1295.21 mg. GAE.100g-1) were observed. Fruits stored at 10 °C showed an increase in titratable acidity after the 5th day and an increase in pH on the 10th and 12th days. Increases in the soluble pectin (156 to 265.73 mg.100g-1) and total pectins (>1.000 mg.100g-1) were noted. No significant difference was observed in the count of the total and thermotolerant coliforms, and the growth of filamentous fungi and yeasts decreased after storage at 0°C and 5°C after the 5th day. Storage at 5 °C for 5 days was found to be the most efficient set of conditions for maintaining the physical, chemical, microbiological and sensory characteristics of marolo.

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Post harvest evaluation of physical-chemical parameters of mechanically damaged Tahiti acid limes

Revista Brasileira de Pesquisa em Alimentos ◽

10.14685/rebrapa.v1i2.20 ◽

2010 ◽

Vol 1 (2) ◽

pp. 79

Author(s):

Michel Shoiti Tamura ◽

Roselene Ferreira Oliveira ◽

Simone Correia Molina ◽

Edmar Clemente

Keyword(s):

Titratable Acidity ◽

Soluble Solids ◽

Chemical Parameters ◽

Post Harvest ◽

Physical Chemical ◽

Randomized Design ◽

Significant Difference ◽

Completely Randomized Design ◽

Solids Content

From harvest to consumption, fruit and vegetables suffer a series of mechanical damages which, depending on their sensitiveness, may cause damages that put their final quality at risk. This work had as its objective evaluate the post harvest quality of mechanically damaged ‘Tahity’ acid limes. The experiment was carried out in a completely randomized design, with 3 repetitions and 7 fruits per treatment, mechanical damages were then evaluated by cutting and impacting in comparison to healthy fruits (control), and maintained for periods of 0, 3. 6, 9, 12, 15 and 18 days, thus obtaining a 3 x 7 factorial experiment. Analyses were made throughout the 18 days, so as to determine the total soluble solids content (expressed in °Brix); titratable acidity (in g of citric acid. 100mL-1); ratio (relationsoluble solids and titratable acidity); vitamin C (expressed in mg of ascorbic acid 100mL-1) and pH. The results obtained showed that there was significant difference in the chemical parameters evaluated, mainly those submitted to damaging treatment. DOI: http://dx.doi.org/10.14685/rebrapa.v1i2.20

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Physicochemical Properties, Proximate Composition and Total Viable Counts of Staphylococcus aureus in ‘Nono’ And Yoghurt Samples in Kaduna, Nigeria

Turkish Journal of Agriculture - Food Science and Technology ◽

10.24925/turjaf.v9i1.15-20.3391 ◽

2021 ◽

Vol 9 (1) ◽

pp. 15-20

Author(s):

Fausat Adeola Abdulrahman ◽

Emiade Sanmi

Keyword(s):

Staphylococcus Aureus ◽

Moisture Content ◽

Protein Content ◽

Crude Protein ◽

Titratable Acidity ◽

Fat Content ◽

Ash Content ◽

Crude Protein Content ◽

Milk Samples ◽

Total Titratable Acidity

The study aims at determining the physicochemical, proximate composition and the total viable count of Staphylococcus aureus in ‘Nono’ and yoghurt samples in Kaduna, Nigeria.Three hundred and eighty-four (384) fermented milk samples (Nono and yoghurt) were obtained from different selling points and were evaluated for the occurrence of S. aureus. The physicochemical and proximate analyses (pH, total titratable acidity, moisture content, ash content, protein content, and fat content) were determined. The results of the analyses showed that Nono had pH range of 3.56-3.61, total titratable acidity: 0.71-1.72, moisture content: 82.23-83.87%, ash content: 0.30-0.31%, crude protein content: 1.50-1.61%, crude fat content: 0.35-0.38 %. For yoghurt, the pH ranged from 3.76 -3.82, total titratable acidity: 1.10 -1.15, moisture content: 77.76-80.06%, ash content: 0.68- 0.70%, crude protein content: 3.40-3.45% and crude fat content: 1.76-1.79% from all the study areas. One hundred and four of the total samples were contaminated with S. aureus. Out of the 104 isolates of S. aureus that were isolated and identified, 88 were coagulase positive S.aureus. The Microgen Staph ID kit (Oxoid) was used to further confirm the characteristics of the 60 isolates of the coagulase positive S. aureus. The kit confirmed 43 isolates as S. aureus, the results indicated the presence of S. aureus in the milk samples which is of public health importance, as this can contribute to food-borne intoxication which can lead to food poisoning. There is a need for proper pasteurisation of raw milk to help eradicate S. aureus infection before human consumption.

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Elaboration of Blends of Pitaya Pulps With Acerola

Journal of Agricultural Science ◽

10.5539/jas.v13n3p53 ◽

2021 ◽

Vol 13 (3) ◽

pp. 53

Author(s):

Maria S. de Moraes ◽

Rossana Maria Feitosa de Figueirêdo ◽

Alexandre J. de M. Queiroz ◽

Luís P. F. R da Silva ◽

Mailson G. Gonçalves ◽

...

Keyword(s):

Ascorbic Acid ◽

Water Content ◽

Water Activity ◽

Economic Value ◽

Titratable Acidity ◽

Soluble Solids ◽

Colorimetric Analysis ◽

Physical Chemical ◽

Total Titratable Acidity ◽

Hue Angle

Pitaya and acerola are fruits rich in nutrients and can be used in blends formulation in order to improve the sensory characteristics of both pulps in isolation and complement each other in terms of nutritional aspects. Thus, the aim of this research was to develop different blends of pitaya pulp with acerola and choose the best formulation based on physical-chemical and colorimetric characteristics. Three blends formulations were prepared: F1-90% pitaya and 10% acerola; F2-70% pitaya and 30% acerola; and F3-50% pitaya and 50% acerola. The formulations were evaluated for physical-chemical parameters of water activity, water content, ash, total soluble solids (SST), pH, total titratable acidity (ATT), SST/ATT ratio, ascorbic acid, proteins, lipids, sugars totals, reducers and non-reducers and colorimetric analysis. The obtained data were subjected to variance analysis (ANOVA) and to comparison between means by the Tukey test at 5% probability. The formulation F1 stood out when compared to the others. The parameters pH, soluble solids, ratio SS/ATT, ash, water content, water activity, proteins, sugars, luminosity and hue angle were the ones that gave the formulation F1 the best results. However, it is noteworthy that the formulation F3 presented a greater amount of ascorbic acid and higher values of a, b and chroma in the colorimetric analysis. The use of these fruits allows to obtain an innovative product with excellent nutritional and functional characteristics. The blend is a viable alternative for the use of perishable and seasonal fruits, adding greater economic value to the very promising product to the market.

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Effect of the addition of psyllium (plantago ovata forsk) on the physicochemical characteristics of frozen banana pulp during storage

Research Society and Development ◽

10.33448/rsd-v10i8.16997 ◽

2021 ◽

Vol 10 (8) ◽

pp. e10510816997

Author(s):

Elisangela Aparecida Nazario Franco ◽

Davy William Hidalgo Chávez ◽

Antonia Barbosa de Lima ◽

Maria do Socorro Rocha Bastos ◽

Nathália Ramos de Melo

Keyword(s):

Storage Period ◽

Titratable Acidity ◽

Physicochemical Characteristics ◽

Health Claims ◽

Soluble Fiber ◽

Significant Difference ◽

Total Titratable Acidity ◽

Different Temperatures ◽

Gastric Emptying Time

Psyllium is a soluble fiber that has aroused the interest of several researchers for presenting proven functional benefits such as reducing LDL cholesterol, controlling blood glucose, delaying gastric emptying time among others. This study aimed to elaborate a banana pulp added psyllium and verify the effect on the physicochemical parameters (pH, total titratable acidity, color and rheology) during 90 days of storage under different temperatures (- 8 °C and – 18 °C). The results showed that the addition of 3% psyllium altered some parameters: the pH did not present a significant difference at time 0, but at times 30 and 60 it showed a difference and at the end of storage it did not show any difference, the ATT did not change at time 0 , but from time 30 it showed a significant decrease until the end of the storage period, the psyllium having a darker color than the banana reduced the luminosity (L *), it was verified that the addition of psyllium increased the apparent viscosity of the pulp. Psyllium has the potential to be used in banana pulp, since the changes in pH and TTA did not affect the quality of the product and meet the recommended by the current quality and identity standard for banana pulp, being a viable product with functional properties that can receive health claims.

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The feasibility of use of sweet potato (ipomoea potatoes l.) flour in the preparation of bakery products

Research Society and Development ◽

10.33448/rsd-v9i10.9286 ◽

2020 ◽

Vol 9 (10) ◽

pp. e8199109286

Author(s):

Aliou Toro Lafia ◽

Tankpinou Richard Ketounou ◽

Gilmar Freire da Costa ◽

Semako Ibrahim Bonou ◽

David Santos Rodrigues ◽

...

Keyword(s):

Sweet Potato ◽

Purchase Intention ◽

Microbiological Analysis ◽

Potato Flour ◽

Chemical Parameters ◽

Sweet Potatoes ◽

Physical Chemical ◽

Significant Difference ◽

Sweet Potato Flour ◽

Sensory Parameters

Sweet potatoes are one of the most consumed vegetables in Brazil and in the world, as they are cheap, easy to buy and healthy food. The objective of this work was to prepare sweet potato flour, bread with the addition of sweet potato flour and evaluate its effect. Four bread formulations were prepared: P0% (standard) and the others added potato flour of 8% (P8%), 16% (P16%) and 24% (P24%). The microbiological, physical-chemical, sensory parameters and the color of flour and bread were evaluated. A statistical analysis was performed with the averages by the Tukey test at 5%. The result of the microbiological analysis was in accordance with the legislation. In potato flour, components such as carbohydrates and proteins stood out. Bread samples showed a significant difference (<0, 05) in relation to the physical-chemical parameters with the exception of moisture and crude fibers. All formulations showed good acceptance in all attributes, presenting scores higher than 6 and a good purchase intention with more than 50% of the products with the exception of the P24% sample.

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PHYSICAL-CHEMICAL, MICROBIOLOGICAL AND SENSORY PROPERTIES OF FRUCTOOLIGOSACCHARIDES ENRICHED YOGURT

Científic - Multidisciplinary Journal ◽

10.29247/2358-260x.2018v5i3.p97-103 ◽

2018 ◽

Vol 5 (3) ◽

pp. 97-103

Author(s):

Dalila Lima Pádua ◽

Valéria Ribeiro Maitan ◽

Márcio Ramatiz Lima Santos

Keyword(s):

Lactic Acid ◽

Sensory Analysis ◽

Purchase Intention ◽

Bacterial Flora ◽

Titratable Acidity ◽

Sensory Properties ◽

Soluble Solids ◽

Microbiological Analysis ◽

Physical Chemical ◽

Hedonic Scale

The functional foods present many health benefits besides their nutritional values pertinent to their chemical composition. They can play an important role on reducing the risk of chronic-degenerative diseases, like cancer, diabetes and others. The prebiotics are non-digestive fibers by the human body, but they increase the intestinal bacterial flora. Among these prebiotics are the fructooligosaccharides. This research aims to evaluate the physical-chemical, microbiological and sensory properties of fructooligosaccharides enriched yogurt. Sensory analysis was performed with 50 non-trained panelists using a structured nine point Hedonic scale for acceptance and buying intention. Microbiological (thermo-tolerant coliforms and salmonella sp/25g) and physical-chemical analyses (pH, titratable acidity expressed as, lactic acid concentration, and soluble solids as °Brix) were carried out in triplicate. All results were submitted to ANOVA and Tukey Test at 5 % of significance to verify the interaction between the averages. The acceptance was 7.9 indicating that product is according to "Liked very much" parameter. The purchase intention response showed 34% of panelists declaring that they would buy the yogurt if they could. The microbiological analysis were negative for thermo-tolerant coliforms and samonella sp./25g. Physical-chemical results were according to other similar products with average of pH 4.45, titratable acidity 0.82 g lactic acid/100 mL, and 22º Brix. Physical-chemical, microbiological and sensory analysis are in accordance to the Brazilian legislation.

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Physical, chemical, microbiological and sensory carachterization of Manipuça jellies for municipal school meals of Fortaleza-CE

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452018728 ◽

2018 ◽

Vol 40 (1) ◽

Author(s):

Lidiane Medeiros Freitas Azevedo ◽

Eliseu Marlônio Pereira de Lucena ◽

Oriel Herrera Bonilla ◽

Márcia Régia Souza da Silveira ◽

Antenor Silva Júnior

Keyword(s):

Public Schools ◽

Soluble Sugar ◽

Titratable Acidity ◽

Botanical Garden ◽

Physicochemical Analysis ◽

Soluble Solids ◽

School Meals ◽

School Students ◽

Total Soluble Sugar ◽

Physical Chemical

Abstract This research aimed to characterize the physical, chemical, microbiological and sensory characterization of manipuçá (Mouriri cearensis Huber) jellies as an alternative to school meals of an elementary public school in Fortaleza-CE. The fruits, in maturation stages 4 (mature) and 5 (senescent), were collected in the Botanical Garden of São Gonçalo, in São Gonçalo do Amarante-CE. Initially, the fruits of manipuça were processed and to obtain the jelly five formulations were proposed (treatments) containing different proportions of water and pulp (4:1-F1; 4:2-F2, 4:3-F3: 4:4-F4; and 4:5-F5), which then they were subjected to physicochemical analysis (total soluble solids-TSS; total titratable acidity-TTA; pH; TSS/TTA ratio-SAR; vitamin C-CV; total soluble sugar-TSSu, reducing sugar-RS and non-reducing sugars-NRS), microbiological (coliforms at 35°C-CF) and sensory (aroma-A; color-C; appearance-AP; flavor-F; texture-T; and the purchaser intends-PI). We used the Assistat program in statistical analyzes. The results showed the following variation in the five formulations: TSS (°Brix) - 72 (F1) to 85.12 (F5); TTA (%) - 0.95 (F1) to 0.54 (F5); pH - 4.09 (F1) to 4.30 (F5); SAR - 75.22 (F1) to 156.20 (F5); CV (mg / 100g) - 7.40 (F2) to 14.19 (F5); TS (%) - 63.97 (F1) to 79.73 (F5); RS (%) - 44.53 (F2) to 66.98 (F5); NRS (%) - 12.47 (F1) to 32.98 (F4); absence of CF; for A, C, AP, F and T, F5 was greater than F2, F3, F4 and equals to F1; and for PI, F5 was superior to all. In conclusion: the F5 is sweeter and less acidic, however, the F1 is less sweet and more acidic; the F5 obtained greater acceptance among students, so this is the ideal formulation to use as an alternative to school meals for primary school students from public schools in Fortaleza-CE.

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Physicochemical evaluation of the fruit pulp of Opuntia spp growing in the Mediterranean area under hard climate conditions

Open Chemistry ◽

10.1515/chem-2020-0097 ◽

2020 ◽

Vol 18 (1) ◽

pp. 565-575

Author(s):

Mohammed Bourhia ◽

Hamza Elmahdaoui ◽

Riaz Ullah ◽

Samir Ibenmoussa ◽

Abdelaaty Abdelaziz Shahat

Keyword(s):

Water Activity ◽

Biochemical Characterization ◽

Physicochemical Characterization ◽

Titratable Acidity ◽

Bioactive Compound ◽

Ash Content ◽

Prickly Pear ◽

Fruit Pulp ◽

Climate Conditions ◽

Total Titratable Acidity

AbstractBarbary fig called prickly pear is a plant belonging to family Cactaceae growing under hard climate conditions. A spiny variety of prickly pear named “Drbana” (Opuntia megacantha) and two non-spiny varieties named “Akria” and “Mlez” (Opuntia ficus-indica) growing in the Rhamna region (Morocco) were studied in terms of physicochemical characteristics. The physicochemical characterization (humidity, water activity, pH, total titratable acidity, Brix, and ash content) and the biochemical characterization (total carotenoid content, betalain content, total polyphenolic content, and ascorbic acid content) of the fruit pulp of prickly pear were performed according to the previously reported methods. The finding of physicochemical characterization of all studied varieties showed that the fruit pulp also contained an interesting bioactive compound classes in humidity, water activity, pH, total titratable acidity, Brix, and ash content. Regarding the biochemical characterization, the obtained finding showed the fruit pulp also contained an interesting bioactive compound classes particularly the total betalains, polyphenols, carotenoids, and ascorbic acids. Based on the obtained results in the current research work, we can affirm that the fruits of all studied varieties meet the requirement for being exploited in food, cosmetic, and pharmaceutical industries.

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