scholarly journals Characterization of white-fleshed peach cultivars grown in the ‘Zona da Mata’ area of Minas Gerais State, Brazil

2016 ◽  
Vol 7 (1) ◽  
pp. 149 ◽  
Author(s):  
Danielle Fabíola Pereira da Silva ◽  
Rosana Gonçalves Pires Matias ◽  
José Osmar Da Costa e Silva ◽  
Alejandro Hurtado Salazar ◽  
Claudio Horst Bruckner

There are few information on the physical and chemical characteristics of peach fruit in subtropical climate regions and the majority of the studies were developed in the southern region of Brazil. In this study, physical and chemical characteristics of 12 white-fleshed peach cultivars (Cristal, Cristal Tacoari, Colibri, Delicioso Precoce, Jóia 1, Jóia 2, Jóia 4, Marli, Okinawa, Pérola de Itaquera, Premier and Tropical) were evaluated. The cultivars were planted in the experimental orchard of the Federal University of Viçosa (UFV), Viçosa – MG, Brazil. The experiment was conducted during the 2011 harvest season, in a completely randomized design with 12 treatments (cultivars), three replications and 10 fruits per plot. The cultivars Delicioso Precoce and Marli showed, in general, higher mass and fruit diameter. Fruits of cultivars Jóia 2 and Tropical presented higher firmness. Cultivar Tropical stood out with better balance between acidity and soluble solids and higher vitamin C and carotenoids contents.

Author(s):  
C. A. Paiva ◽  
E. M. M. Aroucha ◽  
R. M. A. Ferreira ◽  
N. O. Araújo ◽  
P. S. L. Silva

<p>O processamento de polpa e a fabricação de geleias são produtos de interesse para a região nordeste do Brasil. A baixa precipitação e os altos índices de luminosidade anuais, associado ao desenvolvimento da irrigação localizada na região, atraíram grandes empresas nacionais e internacionais para a produção de variados tipos de frutos, incluindo a acerola e o melão. O objetivo do presente trabalho foi avaliar as características físico-químicas de geleia simples e mista (50% de melão e 50% de acerola) de melão e acerola, por ocasião do preparo e após o armazenamento por 30 dias. Utilizou-se o delineamento inteiramente casualizado. O tempo de armazenamento aumentou o teor de sólidos solúveis (SS) e o pH, mas reduziu a acidez titulável e o teor de ácido ascórbico das geleias. A geleia de melão apresentou o maior teor de SS após o armazenamento. E a geleia de acerola obteve valores superiores de pH, acidez titulável e vitamina C, nas duas épocas de análise. Já a geleia mista apresentou pH igual à geleia de melão, mas quanto às demais características situou-se entre às geleias simples.</p><p align="center"><strong><em>Physical and chemical characteristics of acerola and melon jellies during storage</em></strong></p><p><strong>Abstract: </strong>The pulp processing and the manufacture of jellies are products of interest to the northeastern region of Brazil. The low rainfall and high rates of annual luminosity associated with the development of drip irrigation in the region, attracted large national and international companies for the production of various kinds of fruits, including acerola and melon. The objective of this study was to evaluate the physico-chemical characteristics of single and mixed jelly (50% of melon and 50% acerola) of melon and acerola, on the occasion of preparation and after storage for 30 days. We used a completely randomized design. The storage time increased the soluble solids (SS) and pH, but reduced titratable acidity and ascorbic acid content from jelly. The melon jelly had the highest SS content after storage. And acerola jelly obtained higher values of pH, titratable acidity and vitamin C, in two periods of analysis. However the mixed jelly showed pH seems to jelly melon, but to the other features it was between the simple jelly.</p>


2016 ◽  
Vol 38 (3) ◽  
Author(s):  
CAMILA PEREIRA CROGE ◽  
FRANCINE LORENA CUQUEL ◽  
LUIZ ANTONIO BIASI ◽  
CLAUDINE MARIA DE BONA

ABSTRACT Blackberry has the potential to be grown in subtropical climates, requiring phenological studies for the indication of cultivars adapted to this type of climate. Thus, the aim of this work was to evaluate the phenological behavior of four blackberry cultivars, as well as to determine the physical and chemical characteristics of fruits produced in mesothermal subtropical climate (Cfa), with more focus on the recommendation of cultivars adapted to this region. The largest production cycle and the best productions and yields were obtained for Guarani cultivar and larger fruits were presented by Tupy cultivar. The best relationship between titratable acidity and soluble solids was presented by Cherokee cultivar.


ZOOTEC ◽  
2017 ◽  
Vol 37 (2) ◽  
pp. 268 ◽  
Author(s):  
Ratna C. Rares ◽  
Meity Sompie ◽  
Arie Dp. Mirah ◽  
Jerry A.D. Kalele

ABSTRACTTHE EFFECT OF SOAKING TIME IN ACETIC ACID SOLUTION ON PHYSICAL AND CHEMICAL CHARACTERISTICS OF CHICKEN CLAW GELATIN. This study was conducted to determine the effect of soaking time in acetic acid solution(CH3COOH) on physical and chemical characteristics of chicken claw gelatin. This study used Completely Randomized Design (CRD) the reatments were soaking time (12, 24, 36 and 48 hours) and four replicates of treatment. The result showed that the curing time  had no significant  effect (P> 0,05) to the gel strength and viscositas of gelatin, but it had significant effect (P<0,05) on rendemen and water content of gelatin. It was concluded that the chicken claw gelatin produced from soaking time 36 hours had the best physical and chemical characteristics. Key words: Acetic acid,  Gelatin, Chicken  claw


2019 ◽  
Vol 2 (2) ◽  
pp. 146
Author(s):  
Retno Widyastuti ◽  
Afriyanti Afriyanti ◽  
Novian Wely Asmoro ◽  
Sri Hartati

Processing figs into food and beverage products will increase the attractiveness to consume this nutrient-rich fruit. One of them is by processing it into syrup. The purpose of this study is to (1) Knowing the effect of the stevia sugar concentration on the physical and chemical characteristics of fig syrup; (2) Knowing the effect of the carboxymethylcellulose (CMC) concentration on the physical and chemical characteristics of fig syrup. The experimental design used in this study was a completely randomized design (CRD) factorial pattern with two treatment factors, namely the concentration of stevia sugar (A) with four types of treatment levels, A1 = 0% (100% sucrose); A2 = 1%; A3 = 2%; A4 = 3%. Concentration of CMC (B) with three types of treatment, B1 = CMC 0%; B2 = CMC 0.25%; B3 = CMC 0.5%. Each treatment was repeated twice to obtain  4 x 3 x 2 = 24 experimental units. The results show the brightest color produced by 100% sucrose with CMC 0% which is equal to 36.24 (L). The highest sugar content was produced in syrup with the addition of stevia 3% and CMC 0% which amounted to 34.46%. The highest viscosity is produced in syrup with the addition of 100% sucrose and CMC 0.5% which is equal to 365.2 cP.)


2016 ◽  
Vol 29 (1) ◽  
pp. 246-256
Author(s):  
EMANUEL NETO ALVES DE OLIVEIRA ◽  
DYEGO DA COSTA SANTOS ◽  
YVANA MARIA GOMES DOS SANTOS ◽  
PAULO RENATO BUCHWEITZ ◽  
JOSIVANDA PALMEIRA GOMES

ABSTRACT: Soursop is a well-appreciated tropical fruit, both in natura and in the form of juices and nectars. Despite its wide acceptance, there is lack of its use in the preparation of other products, such as alcoholic beverages. The objective of this study was to prepare soursop liquors by varying the concentrations of pulp and sucrose syrup with different contents of total soluble solids and to evaluate the effects of these on the physical and chemical characteristics of the beverages. In the production process, the pulp (300, 400 and 500 g) was macerated with distilled alcohol for 20 days, after which it was filtered, added to the syrup (50, 60 and 70 °Brix), bottled in polyethylene bottles and subjected to an accelerated aging. All drinks resulted in alcohol levels (15.25 to 16.69% v/v) and total sugars (12.63 to 17.97%) in accordance with the standards required by law. The experiments made with the lowest concentration of pulp showed the highest yields (84.17 and 85.25%). First-order models with interactions and 95% confidence intervals were obtained. The pulp consisted of the most significant factor, influencing the largest number of responses (yield, alcohol content, dry residue, titratable acidity, titratable acidity/soluble solids ratio and luminosity). The larger coefficient of determination (R2) values were found in the models adjusted to the data of yield, dry residue, total soluble solids, titratable acidity and total sugars, which were significant and predictive, showing values greater than 0.97.


2021 ◽  
Vol 18 (1) ◽  
pp. 37
Author(s):  
Ita Yustina ◽  
Ana Nurhasanah ◽  
SS. Antarlina

<p class="Abstrak"><span lang="EN-GB">By processing sorghum grains into flour, the use of sorghum grains to support food diversification can be made more varied. The research objective was to determine the physical and chemical properties of sorghum muffins and changes of physical properties of sorghum muffins during storage. The research uses a completely randomized design with two factor, grain soaking duration (hours) and ratio of concentration of whole sorghum flours with gluten flour (%) and consists of nine treatments combination. The result shows that treatment has a significant effect on the power expansion, degree of brightness, fat, and preference for organoleptic properties. The best treatment was 24-hours of soaking, 25% whole sorghum flour, 75% gluten flour that produces expanded power at 138,83%, degree of brightness (L) at 67.03, redness (a) at +4.33, yellowness (b) at +27.37, water content of 12.59%, protein content of 6.95%, fat content of 2.46%, score of color at 3.20, texture score at 3.13, aroma score at 3.16, taste score at 3.24, and for overall acceptance at 3.53 (like). Changes of physical properties of sorghum muffins during storage for 3 days can be explained with the linear equation. For all parameter (weight loss, volume loss, brightness loss), the value of constant a in the equation of sorghum muffin was lower than control muffin that indicated quality loss of sorghum muffins is higher than control muffin. Increasing the concentration of sorghum flour resulted a decrease in the quality of the muffins. The soaking treatment of the seeds in making sorghum flour can maintain the quality of the muffin.</span></p>


2015 ◽  
Vol 35 (03) ◽  
pp. 273 ◽  
Author(s):  
Budi Santoso ◽  
Filli Pratama ◽  
Basuni Hamzah ◽  
Rindit Pambayun

The research aimed to know physical and chemical characteristics of Canna edulis Kerr and Dioscorea hispida Dennst unmodified and modified starch with cross-linking method. This research was divided into two stages. The first stage of the research was characterization of starch from Canna edulis Kerr and Dioscorea hispida Dennst and the second stage of the research was processing of modified starch from Canna edulis Kerr and Dioscorea hispida Dennst through crosslinking by using POCl at the concentration of 0.04%(v/v), 0.08%(v/v), dan 0.12%(v/v). There was no specific researchdesign for the first stage of the research.  The collected data was tabulated. The research design for the second stage was non factorial completely randomized design with five replications. The results showed that C. edulis contained starch content (41.35%) and D. hispida (38.80%). C. edulis starch had amylose content (17.59%) and D. hispida starch 8.92%. The modification of C. edulis starch contained of phosphate (15.74 ppm) and D. hispida 9.54 ppm. The starch granule was found in C. edulis (20-50 μm) and starch granule was in D. hispida (4.23 to 4.52 μm). The physical and chemical characteristics of modified C. edulis and D. hispida starch were not similar to the unmodified starch. The amylose andstarch contents in the modified starch was reduced, on the other hand, the phosphate content was increased, whereas the granule size was unchanged.3Keywords: Canna edulis Kerr, cross-linking, Dioscorea hispida Dennst, phosphate, starch ABSTRAKPenelitian ini bertujuan untuk mengetahui karakteristik fisik dan kimia pati ganyong dan gadung sebelum dan setelah dimodifikasi dengan menggunakan metode ikatan silang (cross linking). Penelitian ini terdiri atas dua tahap. Tahap pertama adalah karakterisasi pati dari umbi ganyong dan umbi gadung. Tahap kedua pembuatan pati termodifikasidari pati ganyong dan gadung melalui ikatan silang dengan menggunakan POCl pada konsentrasi 0,04% (v/v);0,08% (vv); dan 0,12% (v/v). Rancangan penelitian tahap pertama menggunakan tabulasi dan tahap kedua rancangan acak lengkap non faktorial dengan lima kali ulangan. Hasil penelitian menunjukkan bahwa kadar pati umbi ganyongsebesar 41,35% dan 38,80% untuk pati umbi gadung. Kadar amilosa pati ganyong 17,59% dan pati gadung 8,92%. Pati ganyong modifikasi mengandung fosfat sebesar 15,74 ppm sedangkan pati gadung 9,54 ppm. Ukuran granula pati ganyong berkisar 20-50 μm dan pati gadung 4,32-4,25 μm. Kadar pati dan amilosa umbi ganyong dan gadung setelahdimodifikasi mengalami penurunan secara signifikan dengan semakin tinggi konsentrasi POCl 3 sedangkan kadar fosfat, derajat substitusi, dan kadar HCN untuk pati gadung mengalami penurunan.Kata kunci: Fosfat, ganyong, gadung, ikatan silang, pati 3,  


2015 ◽  
Vol 6 (1) ◽  
pp. 51
Author(s):  
Juliana Angelo Pires ◽  
Aline Da Silva Delabio ◽  
Rafaela Prezotto Vicente ◽  
Marcia Nalesso Costa Harder ◽  
Lucia Cristina Aparecida Santos Silva ◽  
...  

<p>The current study deals with <em>cacha&ccedil;a</em> irradiation in the presences of grapes, with the use of gamma radiation (Co 60) to evaluate its effects on the physical and chemical characteristics of this beverage. The research had as objective to assess the effects of irradiation in <em>cacha&ccedil;as</em>, in the extraction of compounds present in the pickled grapes in the <em>cacha&ccedil;a</em>. Samples were prepared with grapes type Crimson, in polypropylene bottles, with and without grapes. Both types of samples were irradiated with doses of 0 (control) and 300Gy. Later were performed physical and chemical analyzes (pH, titratable acidity, soluble solids) during a 5-day span after irradiation treatment. Significative statistical difference was noticed in titratable acidity of the samples that contained grapes, larger values when compared with pure samples. However, there was no statistical difference when comparing the pure beverage with control or the beverage containing grapes and control. For pH the values for the samples with grapes is statistically lower than the others. The results for soluble solids (&ordm;Brix) displayed an increase on both types of samples comparing with their respective controls. In conclusion, the 300Gy dose was effective for increasing soluble solids quantity both in pure <em>cacha&ccedil;as</em> as in presences of grapes. Relating to pH and acidity, this dose shows interference when grapes are presents.</p><p>&nbsp;</p><p>DOI: 10.14685/rebrapa.v6i1.199</p>


2016 ◽  
Vol 7 (3) ◽  
pp. 334 ◽  
Author(s):  
João Paulo Gava Cremasco ◽  
Rosana Gonçalves Pires Matias ◽  
Danielle Fabiola Pereira da Silva ◽  
João Alison Alves Oliveira ◽  
Cláudio Horst Bruckner

The fruit physical and chemical characteristics can vary during the maturation period and this variation depends, among other factors, on the weather conditions during fruit development. This study aimed to evaluate the changes in physical and chemical characteristics of eight peach cultivars during two seasons. The cultivars Campinas 1, Coral, Maciel, Marli, Premier, Regis, Rei da Conserva and Tropic Beauty were planted on Okinawa rootstock at the experimental orchard of the Federal University of Viçosa (UFV), Viçosa-MG, Brazil, in 2008 and the following characteristics were evaluated: fruit weight, skin color, firmness, soluble solids, titratable acidity, ascorbic acid and total carotenoids. The experiment was conducted during 2011 and 2012 growing seasons in a completely randomized design with eight treatments (cultivars), three repetitions and 10 fruits per plot. There were differences between the variables for the two seasons, with the largest variations observed for firmness, ascorbic acid and total carotenoids. Cultivars Maciel and Marli produced fruit with higher mass, Tropic Beauty with greater firmness and Rei da Conserva, Coral and Marli with higher soluble solids contents. The cultivar Rei da Conserva presented higher values for most of the evaluated variables in both seasons. The yellow color, evaluated by the hue angle, is associated with total carotenoids content in peaches.


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