scholarly journals Alcoholic fermentation of red flesh dragon fruit (Hylocereus polyrhizus)

2020 ◽  
Vol 19 (04) ◽  
pp. 56-63
Author(s):  
Binh Q. Hoang
Keyword(s):  
Alcoholic Fermentation ◽  
Solid Content ◽  
Soluble Solids ◽  
Soluble Solid Content ◽  
Sodium Metabisulfite ◽  
Fermentation Time ◽  
Water Mixing ◽  
Dragon Fruit ◽  
Soluble Solid ◽  
Solids Content

The experiment was conducted to determine effects of sodium metabisulfite content, flesh and water mixing ratio, total soluble solids content, percentage of additional yeast and fermentation time on alcoholic fermentation of red flesh dragon fruit. The results showed that all factors influenced the fermentation. The most appropriate fermentation conditions were use of juice without water mixing, addition sodium metabisulfite content of 80 ppm, the total soluble solid content of 22oBrix, 5% of yeast solution and 13-d fermentation.

scholarly journals Modelling the rheological behaviour of enzyme clarified  lime (Citrus aurantifolia L.) juice concentrate

2012 ◽  
Vol 30 (No. 5) ◽  
pp. 456-466 ◽  
Author(s):  
S.S. Manjunatha ◽  
P.S. Raju ◽  
A.S. Bawa
Keyword(s):  
Water Activity ◽  
Rheological Behaviour ◽  
Solid Content ◽  
Total Soluble Solid ◽  
Soluble Solids ◽  
Soluble Solid Content ◽  
Soluble Solids Content ◽  
Lime Juice ◽  
Soluble Solid ◽  
Solids Content

The rheological behaviour of enzyme clarified Lime (Citrus aurontifolia L.) juice was studied as a function of the total soluble solid (TSS) content (7.3&ndash;55.7&deg;Brix), corresponding water activity (a<sub>w</sub>) (0.985&ndash;0.831) at different temperatures (20&ndash;80<sup>o</sup>C) using co-axial controlled stress rheometer. The rheological parameter shear stress was measured up to the shear rate of 600 s<sup>&ndash;1</sup>. The investigation showed that the enzyme clarified lime juice and its concentrate behaved like a Newtonian fluid with the viscosity (&eta;) being in the range 3.964 to 50.290 mPa s depending upon the concentration and temperature used. The temperature dependency on the viscosity of lime juice was described by Arrhenius equation (r &gt; 0.99) and the activation energy (E<sub>a</sub>) of viscous flow was in the range 4.151 to 26.050 kJ/mol depending upon the total soluble solids content. The effect of total soluble solid content on the flow activation energy was described by exponential type equation (r &gt; 0.98) and that of water activity was described by both the power law and exponential equations (r &gt; 0.99). The effect of total soluble solid content on the viscosity of lime juice followed the second order exponential equation (r &gt; 0.99) at the temperature used. The effect of water activity on the viscosity was described by both the power law and exponential type relationship (r &gt; 0.97). The equations relating to the combined effect of temperature and total soluble solids content/water activity on the viscosity of enzyme clarified lime juice were established. &nbsp;

scholarly journals Effect of Fermentation Factors on Red Dragon Juice from Lap Thach, Vinh Phuc Province 

2021 ◽  
Vol 31 (1) ◽  
pp. 67-72
Keyword(s):  
Solid Content ◽  
Product Diversification ◽  
Added Value ◽  
Soluble Solids ◽  
Agricultural Product ◽  
Soluble Solid Content ◽  
Commercial Market ◽  
Soluble Solid ◽  
Sensory Qualities ◽  
Solids Content

The red dragon is a main agricultural fruit in Vinh Phuc province with the largest cultivation area in northern Vietnam. Recently, fermentation juices are getting more attention in commercial market due to remaining the natural properties and flavor of fresh fruits. Thus, the development of fermented juice products from Vinh Phuc red dragon is necessary for the product diversification and added value of this agricultural product. The purpose of this study is to investigate the effect of some factors such as culture density, pH and the total soluble solids content of the original juice on red dragon (Hylocereus polyrhizus) juice fermentation obtained from Lap Thach, Vinh Phuc province. The results showed that the fermentation process should be conducted at the total soluble solid content of 150Bx, the Saccharomyces cerevisae content of 0.4g/kg, and the pH of 4.5 producing the most favorable in nutrition and sensory qualities.

scholarly journals Optimization of alcoholic fermentation of custard apple juice by Saccharomyces cerevisiae using response surface methodology

2019 ◽  
Vol 18 (5) ◽  
pp. 70-78
Author(s):  
Huan T. Phan
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Apple Juice ◽  
Alcoholic Fermentation ◽  
Apple Fruit ◽  
Inoculum Size ◽  
Solid Content ◽  
Soluble Solid Content ◽  
Fermentation Time ◽  
Custard Apple ◽  
Soluble Solid

In recent years, custard apple fruit has been applied in food processing with various products. The objective of this study was to valorize a fermented fruit drink from a Vietnamese local custard apple fruit by the alcoholic fermentation of the juice using Saccharomyces cerevisiae. Response surface methodology was used to describe dependency of soluble solid content, inoculum size of yeast and fermentation time on ethanol production during fermentation of custard apple juice by Saccharomyces cerevisiae SLS. The experiments were performed according to the central composite design with total soluble solid content ranging from 16 to 20oBrix, inoculum size of yeast from 1% to 3%, and fermentation time from 42 to 48 h. A quadratic model was developed to correlate the variables to the ethanol yield and sensory score. The results showed that a production of ethanol from the custard apple juice could be achieved reaching up to 5.1% (v/v) at optimum conditions of 19oBrix, 2% yeast and 44-h fermentation time. The model predictions agreed satisfactorily with the experimental values

scholarly journals Production and quality of melon hybrid Mandacaru irrigated with different levels of salinity

2011 ◽  
Vol 29 (4) ◽  
pp. 600-604 ◽  
Author(s):  
Damiana Cleuma de Medeiros ◽  
José Francismar de Medeiros ◽  
Francisco Aécio de L Pereira ◽  
Sonally Cristina de M Silva ◽  
Maria das Graças Amâncio
Keyword(s):  
Block Design ◽  
Fruit Production ◽  
Solid Content ◽  
Salinity Level ◽  
Soluble Solids ◽  
Northeastern Brazil ◽  
Soluble Solid Content ◽  
Salinity Levels ◽  
Solids Content

Among the problems faced by the melon crop in the state of Rio Grande do Norte, northeastern Brazil, the effect of water and soil salinity is considered one of the key factors to limit fruit production and quality. The aim of this work was to study the effects of using irrigation waters with different salinity levels on yield and quality of fruits of the yellow melon hybrid Mandacaru. A randomized complete block design was used with five treatments (irrigation water salt concentrations: 0.54, 1.48, 2.02, 3.03, 3.9 dS m-1) and four replications. The effects of these concentrations were evaluated through, number of marketable fruits per plant, marketable and total fruit yield, average marketable fruit mass, soluble solids content and pulp firmness. Increment in water salinity level negatively influenced crop yield. The 3.9 dS m-1 salinity level caused yield losses of 20.31%, due to the reduction of fruit number per plant. The highest soluble solid content and the highest pulp firmness values were estimated to occur at salinity levels 2.09 and 3.5 dS m-1, respectively.

scholarly journals ARRANJO ESPACIAL E PODA NA PRODUÇÃO E QUALIDADE QUÍMICA DE MARACUJÁ IRRIGADO COM ÁGUA SALINA

Irriga ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 549-561
Author(s):  
RAFAEL RAMOS MORAIS ◽  
JOÃO PAULO SILVA MACÊDO ◽  
LOURIVAL FERREIRA CAVALCANTE ◽  
JACKSON TEIXEIRA LOBO ◽  
ANTÔNIO GUSTAVO LUNA SOUTO ◽  
...  
Keyword(s):  
Saline Water ◽  
Titratable Acidity ◽  
Solid Content ◽  
Fruit Yield ◽  
Main Stem ◽  
Planting Density ◽  
Soluble Solid Content ◽  
Soluble Solid ◽  
Solids Content

ARRANJO ESPACIAL E PODA NA PRODUÇÃO E QUALIDADE QUÍMICA DE MARACUJÁ IRRIGADO COM ÁGUA SALINA     RAFAEL RAMOS MORAIS1; JOÃO PAULO SILVA MACÊDO2; LOURIVAL FERREIRA CAVALCANTE3; JACKSON TEIXEIRA LOBO1; ANTÔNIO GUSTAVO LUNA SOUTO1 E EVANDRO FRANKLIN MESQUITA4   1 Programa de pós-graduação em Agronomia, Departamento de Fitotecnia e Ciências Ambientais do Centro de Ciências Agrárias, Universidade Federal da Paraíba, Rodovia PB 079, SN, Km 12, 58.397-000, Areia, Paraíba, Brasil, [email protected]; [email protected], [email protected]. 2 Empresa Paraibana de Pesquisa, Extensão Rural e Regularização Fundiária, Rodovia BR 230, S/N, Km 13, Morada Nova, 58.108-502, Cabedelo, Paraíba, Brasil, [email protected]. 3 Professor do Departamento de Solos e Engenharia Rural, Universidade Federal da Paraíba, Rodovia PB 079, S/N, Km 12, 58.397-000, Areia, Paraíba, Brasil, [email protected]. 4 Professor do Centro de Ciências Humanas e Agrárias, Universidade Estadual da Paraíba, Sitio Cajueiro, S/N, Zona Rural, 58.884-000, Catolé do Rocha, Paraíba, Brasil, [email protected].     1 RESUMO   Um experimento foi desenvolvido no município de Coronel Ezequiel, Estado do Rio Grande do Norte, Brasil, para avaliar os efeitos da densidade de plantio e poda da haste principal em plantas de maracujazeiro amarelo, acesso Guinezinho, sob irrigação com água salina de 3,4 dS m-1. Os tratamentos, com distância de 2,0 m entre linhas, foram distribuídos em blocos ao acaso, com quatro repetições de 12 plantas por parcela, em esquema fatorial 4 × 2, correspondente as distâncias de 3, 6, 9 e 12 m entre plantas nas linhas com e sem poda da haste principal, ao atingir o sistema de sustentação. Os componentes avaliados foram número de frutos colhidos, produção por planta, produtividade e na polpa dos frutos, os valores de sólidos solúveis, acidez titulável, pH e a relação sólidos solúveis/ acidez titulável. A interação entre os fatores estudados exerceu efeitos significativos no número de frutos colhidos, produção por planta, teor de sólidos solúveis e acidez titulável. A produtividade foi influenciada pelos dois fatores de forma isolada. O pH da polpa respondeu apenas ao espaçamento entre plantas nas linhas e a relação SS/AT não foi influenciada por nenhuma das fontes de variação estudadas. O aumento das distâncias de plantio nas linhas promove ganho de produção por planta, mas reduz a produtividade. Plantas podadas na haste principal apresentam maior produtividade. A irrigação com água de qualidade restritiva à agricultura não inibiu a capacidade produtiva do maracujazeiro amarelo acesso Guinezinho e não prejudicou a qualidade química dos frutos.   Palavras-chave: acesso Guinezinho, densidade de plantio, Passiflora edulis Sims.     MORAIS, R. R.; MACÊDO, J. P. S.; CAVALCANTE, L. F.; LOBO, J. T.; SOUTO, A. G. L.; MESQUITA, E. F. SPATIAL ARRANGEMENT AND PRUNING IN THE PRODUCTION AND CHEMICAL QUALITY OF YELLOW PASSIONFRUIT IRRIGATED WITH SALINE WATER       2 ABSTRACT   An experiment was carried out in  Coronel Ezequiel municipality, Rio Grande do Norte State, Brazil, to evaluate the effects of planting density and pruning of the main stem on yellow passion fruit plants access Guinezinho under irrigation with saline water (3.4 dS m-1). The treatments, with inter-row distance of 2 m, were distributed in randomized blocks, with four replications of 12 plants per plot, in a 4 × 2 factorial scheme, corresponding to intra-row distances of 3, 6, 9 and 12 m for plants with and without pruned main stem, upon reaching the support system. The evaluated components were number of fruit harvested, production per plant, fruit yield and in the fruit pulp, the analyzed components were soluble solid content, titratable acidity, pH and soluble solid content/ titratable acidity ratio. The interaction between the factors studied significantly affected the number of fruit harvested, production per plant, solids content and titratable acidity. The fruit yield was influenced by the two isolated factors, but the pH of the pulp responded only to the intra-row plant spacing, and the solids content/ titratable acidity ratio was not influenced by any of the sources of variation studied. Increasing the distances intra-row raises the production per plant, but reduces fruit yield. Plants pruned on the main stem have higher fruit yield. Irrigation with restrictive water quality to agriculture did not inhibit the productive capacity of yellow passion fruit access Guinezinho and did not impair the chemical quality of the fruits.   Keywords: Guinezinho access, planting density, Passiflora edulis Sims.

Rheological Characteristics of Juniperus drupacea Fruit Juice (pekmez) Concentrated by Boiling

2008 ◽  
Vol 14 (4) ◽  
pp. 321-328 ◽  
Author(s):  
M. Akbulut ◽  
H. Çoklar ◽  
G. Özen
Keyword(s):  
Flow Characteristics ◽  
Shear Thickening ◽  
Solid Content ◽  
Soluble Solids ◽  
Effect Of Temperature ◽  
Coefficient Of Determination ◽  
Rheological Parameters ◽  
Soluble Solid Content ◽  
Rotational Viscometer ◽  
Soluble Solid

Rheological parameters of Juniperus drupacea fruit pekmez were evaluated using a rotational viscometer at 10, 20, 30, 40, and 50 °C and at concentrations of 62.8, 68.9, 72.0, and 75.2% total soluble solids. The flow characteristics of Juniperus drupacea fruit pekmez were described by the power law and Herschel—Bulkley models. The Herschel—Bulkley model was found to be the best to describe the rheological property with the coefficient of determination higher than 0.993. Juniperus drupacea pekmez exhibited a time-independent shear thickening behavior. The effect of temperature on viscosity can be described by means of an Arrhenius equation. Depending on the soluble solid contents, the activation energies for flow of diluted samples vary from 78.23 to 60.38 kJ/mol. The effect of soluble solids on viscosity can be described by an exponential equation. Experimental data were fitted to several models in order to describe the effect of temperature and soluble solid content. The combined effect of temperature and soluble solid content on viscosity was also formulated.

scholarly journals Pengaruh Konsentrasi Ampas Tahu dan Susu Skim terhadap Fisikokimia Yogurt Skim Santan

2021 ◽  
Vol 41 (2) ◽  
pp. 195
Author(s):  
Tengku Mia Rahmiati ◽  
Virna Muhardina ◽  
Putri Meutia Sari
Keyword(s):  
Skim Milk ◽  
Coconut Oil ◽  
Solid Content ◽  
Coconut Milk ◽  
Raw Material ◽  
Soluble Solids ◽  
Soluble Solid Content ◽  
High Concentration ◽  
Randomized Design ◽  
Soluble Solid

Skim coconut milk is a liquid by-product of coconut oil production with limited utilization in food processing. It has nutritional value such as protein, carbohydrate and mineral, so it is possible to be used as raw material for processing food products, such as yogurt. The use of tofu waste flour and skim milk as prebiotic and protein source is intended to improve the physical quality of yogurt skim coconut milk. This study used a completely randomized design (CRD) with 2 factors and 3 levels (1,5%, 3%, and 4,5%), and several skim milk concentrations (10%, 12,5%, and 15%). The results of this study indicated that the addition of tofu waste flour and skim milk have no significant effect on the viscosity of the coconut milk yogurt. In the organoleptic test, the addition of tofu waste flour showed significant effect on panelist perception of flavor, aroma, and color. The higher the percentage of the flour, the lower the panelist preference on flavor, aroma, and color; flavor. High concentration of flour can increase the total of soluble solid content in yogurt. A concentration of 4.5% tofu waste flour and 15% skim milk produced 13,89 oBrix and 15,44 oBrix soluble solids resulting in the highest viscosity value of 609,6 Cp.

scholarly journals Chemical, physico-chemical and sensory characterization of mixed açai (Euterpe oleracea) and cocoa´s honey (Theobroma cacao) jellies

2013 ◽  
Vol 35 (2) ◽  
pp. 587-593 ◽  
Author(s):  
Biano Alves de Melo Neto ◽  
Elck Almeida Carvalho ◽  
Karen Valverde Pontes ◽  
Waldemar de Sousa Barretto ◽  
Célio Kersul do Sacramento
Keyword(s):  
Theobroma Cacao ◽  
Purchase Intention ◽  
Titratable Acidity ◽  
Positive Influence ◽  
Solid Content ◽  
Soluble Solids ◽  
Soluble Solid Content ◽  
Soluble Solids Content ◽  
Euterpe Oleracea ◽  
Solids Content

Four formulations of mixed açaí (Euterpe oleracea) (A) and cocoa´s honey (Theobroma cacao) (CH) jellies were prepared according to the following proportions: T1 (40% A:60% CH), T2 (50% A:50% CH), T3 (60% A: 40% CH) and T4 (100% A - control). All formulations were prepared using a rate 60:40 (w/w) of sucrose and pulp, plus 0.5% pectin and the products reached to average of 65% soluble solids content. The jellies were analyzed by chemical and physicochemical (titratable acidity, pH, soluble solid content, dry matter, total protein, lipids, vitamin C and calories) and sensory characteristics; also were evaluated levels of P, K, Ca, Mg, Fe, Zn, Cu and Mn. It was used a hedonic scale of 7 points to evaluate the attributes: overall impression, spreadability, brightness, flavor, texture and color, and also was verified the purchase intention score. The titratable acidity and pH ranged from 0.46 to 0.64% and 3.35 to 3.64, respectively, that are within the range found at most fruit jellies. The soluble solids content ranged between 65.2 and 65.5 ºBrix. The sensory acceptance results showed that all treatments (T1, T2, T3 and T4) presented means of sensory attributes above 4, demonstrating good acceptance of the product, but the treatment T1 presented the higher scores for the evaluated attributes. Cocoa´s honey added a positive influence on the attributes of color, texture and spreadability.

scholarly journals THE ASSESMENT OF TEN APPLE CULTIVARS AND THEIR SUSCEPTIBILITY ON BRUISING AFTER STORAGE AND SHELF-LIFE OF FRUIT TREATED WITH 1-MCP

2019 ◽  
Vol 18 (6) ◽  
pp. 129-138
Author(s):  
Tomasz Lipa ◽  
Iwona Szot ◽  
Bohdan Dobrzański Jr. ◽  
Magdalena Kapłan
Keyword(s):  
Shelf Life ◽  
Cold Storage ◽  
Impact Test ◽  
Matter Content ◽  
Solid Content ◽  
Soluble Solids ◽  
Soluble Solid Content ◽  
Dry Matter Content ◽  
Apple Cultivars ◽  
Solids Content

Control fruits and fruits subjected to 1-MCP application were placed in cold storage at 2°C, 90% r.h. for 18 weeks. The susceptibility of ten apple cultivars: ‘Beni Shogun’, ‘Braeburn Hillwell’, ‘Elise’, ‘Gloster’, ‘Golden Delicious’, ‘Idared’, ‘Jonagold Decosta’, ‘Ligol’, ‘Mutsu’ and ‘Šampion’ was tested using an impact test to obtain bruising of fruits. The analyses were performed on fruits immediately after harvest and four times after different period of cold storage (9 and 18 weeks) and shelf-life (7 days). The following analysis and characteristics of apples were determined: soluble solids content, dry matter content, acidity, fruit mass and size, and firmness. Impact test was carried out by dropping a glass ball with a mass of 25.68 g from height of 40 cm, due to which kinetic energy value of 0.1 J was obtained. Slight differences in acidity and soluble solid content were observed. On the other hand, stress noticed at firmness test was significantly higher for fruits treated with 1-MCP. It was also observed that firmness decreases after the shelf-life and after storage of fruit at room temperature. The ‘Beni Shogun’ apples fruits stored for 9 weeks are most susceptible to bruising (volume = 438.26 mm3). After cold storage, less susceptible cultivar was ‘Szampion’, for which the volume of fruit bruise was 145.62 mm3 only. After 9 weeks of cold storage, for most cultivars, there was no significant differences in bruise volume; however, the shelf-life had significant influence by differing the cultivars, and for all studied cultivars, the bruise volume was lower.

scholarly journals Optimization of alcoholic fermentation of dragon fruit juice using response surface methodology

Food Research ◽  
2020 ◽  
Vol 4 (5) ◽  
pp. 1529-1536
Author(s):  
P.T. Huan ◽  
N.M. Hien ◽  
N.H.T. Anh
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Alcoholic Fermentation ◽  
Fruit Juice ◽  
Sugar Content ◽  
Inoculum Size ◽  
Soluble Solids ◽  
Quadratic Model ◽  
Fermentation Time ◽  
Dragon Fruit

In recent years, dragon fruit has been applied in food processing with various products. The purpose of this study aimed to valorize a fermented fruit drink from a Vietnamese local dragon fruit by alcoholic fermentation of the juice using Saccharomyces cerevisiae. Response surface methodology was applied to find the optimal condition of varied factors including total soluble solids content, inoculum size of the yeast and fermentation time. The experiments were carried out according to the central composite design with the sugar content ranged from 16 to 20°Brix, the inoculum size from 1 to 3% yeast and the fermentation time from 40 to 48 hrs. A quadratic model was respectively developed to correlate the investigated variables to the remained sugar content and ethanol yield of the product. The optimized conditions for fermentation were selected as 18°Brix of initial fruit juice; 2% v/v of added yeast inoculation rate and 44-hours fermentation time. Under these conditions, final fermented dragon fruit juice achieved alcohol content of 3.54% v/v with remaining sugar content of 14.6°Brix and a level of ‘moderately like’ obtained by sensorial evaluation

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