scholarly journals Use of fibres obtained from the cashew (Anacardium ocidentale, L) and guava (Psidium guayava) fruits for enrichment of food products

2005 ◽  
Vol 48 (spe) ◽  
pp. 143-150 ◽  
Author(s):  
Maria de Fátima O. Matias ◽  
Edson Leandro de Oliveira ◽  
Eduardo Gertrudes ◽  
Margarida Maria dos Anjos Magalhães

With the purpose of using the cashew and guava dried bagasse for enrichment of cookies, a study of drying process was done. The physico- chemical characterization included the determination of pH, soluble solids, total acidity, protein, lipids, fiber, ash, moisture and total and reducing sugars. Total coli forms, yeasts and molds counting were the microbiological analyses conducted. Enriched cookies were prepared by adding 5, 10 and 15% (of total weight) of dry residues of cashew and guava. Appearance, color, odor, taste and texture were the sensorial attributes evaluated for the enriched and non-enriched cookies. The granulometric analysis defined that more adequate particle to add were between 65 and 100 mesh. The enriched cookies with cashew and guava fibers in 10% e 5%, respectively, showed a high rate of acceptability in relation to flavor.

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Zeyu Wu ◽  
Haiyan Wang ◽  
Li Zhang ◽  
Zhaojun Xian ◽  
Honghong Li ◽  
...  

Abstract In this study, the physico-chemical properties of tomato powder produced by an optimized freeze drying process (FDP) were evaluated. With the lycopene content as the dependent variable, the optimum FDP conditions (i.e., thermal cracking time of 62 s, ascorbic acid addition amount [0.13%], and particle size [Dv90] of 163 μm) were obtained through response surface methodology (RSM). The results showed that the content of lycopene in the prepared tomato powder was higher than that in two commercial products. Aldehydes were the main components among 25 kinds of aromatic substances detected in tomato powder. The values of a * and a */b *, the hydration properties including water holding capacity (WHC) and oil binding capacity (OBC), and the content of total acid, ascorbic acid, and soluble solids were improved compared to commercial spray dried and freeze dried samples. All the above results suggested that FDP was an adequate procedure for the production of high-quality tomato powder.


2014 ◽  
Vol 5 (1) ◽  
pp. 9
Author(s):  
Marisete Bortoluzzi ◽  
Carla Regina Zimpel Nunes ◽  
Marines Luiza Silva ◽  
Daneysa Lahis Kalschne ◽  
Saraspathy Naidoo Terroso Gama Mendonça ◽  
...  

<p><em>The present work aimed to analyze the microbiological, physico-chemical and sensory characteristics of three commercial brands of yogurt with plum pulp. Count of Coliform at 35 and 45&nbsp;&ordm;C, yeast and mold and sensory evaluation (hedonic scale) at the beginning of shelf life was done. Additionally at 8, 16, 24 and 32 days of storage (6 &plusmn; 2 &ordm;C) were performed the count of total lactic acid bacteria, determination of pH and acidity (in lactic acid). For all samples Coliforms at 35 and 45 &ordm;C were not detected, while yeasts and molds were below the maximum limit established. The total count of lactic acid bacteria remained above the minimum recommended in the intervals, while the pH decreased with storage time and acidity remained stable. In sensory analysis there was difference (p&lt;0.05) between the samples for the attributes color, appearance of pieces of plum, plum aroma and sweetness, while the attributes flavor of plum, acid flavor, consistency and overall impression were not different. The acceptability index ranged from 65.08 to 79.37%.</em></p><p>&nbsp;</p><p>DOI: 10.14685/rebrapa.v5i1.136</p><p><em><br /></em></p>


Author(s):  
Maria José Silveira da Silva ◽  
Ana Paula Trindade Rocha ◽  
Dyego da Costa Santos ◽  
Alfredina Dos Santos Araújo ◽  
Marcela Nobre de Oliveira

<p>Objetivou-se<strong> </strong>caracterizar blend<em> </em>de abacaxi com acerola liofilizado quanto à composição físico-química. O estudo foi conduzido no Laboratório de Armazenamento e Processamento de Produtos Agrícolas da Universidade Federal de Campina Grande, Campina Grande, Paraíba. As polpas foram homogeneizadas em liquidificador durante 1 min e filtrado em peneira com malha de 2,5 mm, as amostras foram liofilizadas em liofilizador de bancada (Terroni, LS 3000), onde foi desidratada na temperatura de -50 °C por 76 h. A amostra in natura e a liofilizada foram submetidas às analises físico-químicas. Onde foi obtido um teor de água de 92% da amostra in natura e, após o processo de liofilização houve uma redução de 70%. A atividade de água (a<sub>w</sub>) foi inferior a 0,30 após a desidratação. Observou-se que houve um amento significativo nos teores de sólidos totais, acidez total titulável e sólidos solúveis totais. No tocante a relação SST/ATT houve um decréscimo de 8,37% e, com relação ao pH não houve diferença significativa entre a amostra in natura e a liofilizada. Com relação aos parâmetros de cor observou-se que houve um aumento de 33,91% para luminosidade e para intensidade de vermelho (+a*) de 3%, no entanto para a intensidade de vermelho (+a*) houve uma redução de 9,27% após a liofilização. O processo de secagem por liofilização concentrou as características físicas e químicas das amostras avaliadas, sendo considerado um método eficiente para redução da atividade de água e para conservação dos alimentos.</p><pre><strong><em>Physical-chemical characterization of pineapple blend with acerola obtained by the lyophilization method</em></strong></pre><p><strong>Abstract</strong><strong>: </strong>The objective of this work was to characterize the blend of pineapple and lyophilized acerola as regards the physicochemical composition. The study was conducted at the Laboratory of Storage and Processing of Agricultural Products of the Federal University of Campina Grande, Campina Grande, PB. The pulps were homogenized in a blender for 1 min and screened with a 2.5 mm mesh, the samples were lyophilized in a bench freeze dryer (Terroni, LS 3000), where it was dehydrated at -50 ° C for 76 h. The in natura and lyophilized samples were submitted to physico-chemical analysis. Where a water content of 92% of the sample was obtained in natura and after the lyophilization process there was a reduction of 70%. Water activity (aw) was less than 0.30 after dehydration. It was observed that there was a significant increase in the contents of total solids, total titratable acidity and total soluble solids. Regarding the SST / ATT ratio, there was a decrease of 8.37% and, regarding pH, there was no significant difference between the in natura and lyophilized samples. Regarding the color parameters, it was observed that there was an increase of 33.91% for luminosity and for red intensity (+ a *) of 3%, however for the intensity of red (+ a *) there was a reduction of 9.27% after lyophilization. It was concluded that the drying process by lyophilization concentrated the physical and chemical characteristics of the evaluated samples, being considered an efficient method to reduce water activity and to preserve food.</p>


2013 ◽  
Vol 12 (24) ◽  
pp. 8-14
Author(s):  
Alexandre Andrade CERQUEIRA ◽  
Monica Regina da Costa MARQUES ◽  
Paulo Sérgio Alves SOUZA ◽  
Mario Luiz Gomes SOARES ◽  
Daniel Vidal PEREZ

Saco do Mamanguá” is located in Ilha Grande Bay, west coast Rio de Janeiro State and suffers intense pressure degradation, mainly by speculation to build "resorts". The region is extremely vulnerable, given that there are in the region of Ilha Grande bay potentially polluting enterprises, such as mangroves. Samples of surface sediments were collected in “Saco do Mamanguá”. In this region, samples were collected at five sampling points parallel to the shoreline at a distance of approximately 10 m between them. Subsequently dried, sieved and analyzed for physico-chemical characterization and determination of heavy metals: Cd, Cr, Ni, Pb and Zn after digestion with aqua regia assisted by microwave radiation. The metal concentrations were determined by atomic absorption spectrometry with flame. The results showed that the sediments in “Saco do Mamanguá” mangrove presents average levels of Cd, Ni and Pb above the established as criteria for sediment quality by environmental agencies from Canadia and United States of America, demonstrating its vulnerability to contaminants of heavy metals existing in the Bay of Ilha Grande.


Author(s):  
DANIELA DE GRANDI CASTRO FREITAS ◽  
MARISA DE NAZARÉ HOELZ JACKIX

Este trabalho teve como objetivo o desenvolvimento de néctar misto de cenoura e laranja, adicionado de frutoligossacarídeo e pectina cítrica. A influência da adição desses ingredientes funcionais foi avaliada mediante planejamento fatorial completo de suas características físico-químicas e aceitação sensorial. A adição de frutoligossacarídeo em interação com a adição de pectina aumentou o teor de sólidos solúveis e a viscosidade da bebida. O frutoligossacarídeo não acarretou efeito negativo na aceitação sensorial da bebida, mesmo em concentração elevada (15%). A adição de pectina cítrica como fibra solúvel em concentração acima de 1% provocou aumento no pH da bebida e as formulações com essas concentrações não alcançaram boa aceitação pelos julgadores na avaliação sensorial. PHYSICO-CHEMICAL CHARACTERIZATION AND SENSORY ACCEPTANCE OF FUNCTIONAL DRINK ADDED OF FRUCTOLIGOSSACHARIDES AND SOLUBLE FIBER Abstract This work had as objective the development of a mixed nectar constituted of carrot and orange, added of fructoligossacharides and citric pectin. The influence of the addition of this functional ingredients was evaluated by complete factorial design of their physico-chemical characteristics and sensory acceptance. The addition of fructoligossacharides in interaction with the addition of pectin enhanced the soluble solids rate and the viscosity of the beverage. The fructoligosaccharide didn’t cause negative effect on sensory acceptance of the drink, even at high concentration (15%). The addition of citric pectin as soluble fiber in concentration above 1% led to an increase in pH of the drink and the formulations with this concentrations didn’t reach good acceptance by the judges in the sensory evaluation.


2017 ◽  
Vol 10 (3) ◽  
pp. 6
Author(s):  
L. S. Garcia ◽  
P. Nascimento ◽  
M. N. S. Guedes ◽  
A. G. Souza ◽  
E. M. Garcia ◽  
...  

The Pequizeiro is a species that belongs to the Brazilian cerrado. Its fruits are the drupácea composed of: epicarpio of greenish color, mesocarpio corosa eternal whitish, and to compose what is known as pyrene, fleshy inner mesocarp, rich in oil, yellow or orange, with stone core covered with thorns that covers A rich whitish brown in oils, as well as the inner mesocarp is edible. The objective of this work was to characterize the physical parameters (fruit weight, volume, percentage sphericity and yield of pulp and nuts) and physicochemical parameters (pH, titratable acidity and total soluble solids) of the region of Sete Lagoas, in Minas Gerais The matrix presents fruits with better desirable characteristics, the processing of these fruits, the mother was 14. Taking into account the percentage of yield of the pulp and brown, the matrix showed higher values for this parameter is the matrix 17. The parameters Physicochemistry did not vary significantly among the studied matrices.


Author(s):  
Joana D’arc P. Matos ◽  
Rossana Maria F. Figueirêdo ◽  
Luis Paulo F. R. Silva ◽  
Maria Suiane de Moraes ◽  
Semirames do N. Silva ◽  
...  

Aims: Coconut catole is the fruit of the Syagrus cearenses palm tree, whose pulp is usually eaten in its natural form. The formulation of blends is intended to improve the acceptance of fruit with potential to be exploited. The objective of this work was to evaluate the physico-chemical characteristics of the whole coconut pulp and the blends formulated with the pulp and milk. Place and Duration of Study: The coconut catole (Syagrus cearensis) were collected in the surroundings of location 551'30 "S, 35º21'13 "O, in Rio Grande do Norte. The work was carried out from January to February 2019. Methodology: The formulations were elaborated by mixing the proportions of 30 and 50% of standardized commercial milk with the whole catole coconut pulp. The products were submitted to the analysis of moisture, water activity (aw), titratable total acidity (TTA), total soluble solids (TSS), TSS/TTA ratio, pH, ascorbic acid, ash, lipids, proteins, color (L*, a*, b*), total sugars, reducers and non-reducers. Results: From the results, it was observed that the addition of milk to the pulp resulted in clear samples and that a higher proportion of the milk statistically influenced the results. Conclusion: The mixture of couscous coconut pulp and milk gave the product better nutritional characteristics, especially protein content and lipid reduction. The addition of the milk to the cocoa pulp influenced the results statistically, showing that the addition of the milk contributed to enhance the pulp.


2016 ◽  
Vol 58 ◽  
pp. 60-69
Author(s):  
Farjana Jahan ◽  
Mohammad Helal Uddin ◽  
Sreebash C. Bhattacharjee

Lipid was extracted from the lipid containing muscle of Liner silver grunter (Pomadasys hasta) by solvent extraction and then purified by standard method. The physico-chemical properties of lipid sample were determined and compared with those of other standard fats and oils. Fatty acid composition of the lipid sample was investigated by Thin Layer Chromatographic (TLC) examination. Gas Liquid Chromatographic (GLC) examination was performed by the methyl esters mixture prepared from the lipid sample. The de-oiled muscle of the fish was studied for the determination of ash content, fiber content, moisture content and protein content. The lipid containing selected muscle was analyzed quantitatively for the determination of percentages of protein, cholesterol and minerals (N, P, K, Ca, and Na). The lipid containing muscle was also analyzed for the determination of the amount of eleven metals by using Atomic Absorption Spectrophotometric method. The lipid sample was evaluated by microbial activity (bacterial activity against nine bacteria and fungal activity against seven fungi).


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