scholarly journals Promising Selections of the Honeyberry (Melicocca bijuga L.) from Puerto Rico

1969 ◽  
Vol 51 (1) ◽  
pp. 66-70
Author(s):  
George C. Jackson

The tropical tree, Melicocca bijuga L., native of the Western Hemisphere, produces an edible fruit which is very much appreciated when those of quality can be obtained. Nutritional value and previous selection work is reviewed. Four promising selections were made from 54 trees evaluated in south Puerto Rico. The methods employed involved measurements of fruit weight, percentage edible pulp, pH, total soluble solids, citric acid content, percentage total sugars, and vitamin C content. The four selections made had 46.6 to 48.6 percent of edible matter by weight, and contained 22.7 to 26.0 percent of total sugars. Descriptions of the four selections are presented.

Author(s):  
F. Guzmán-Camposeco ◽  
Juan F. Aguirre-Medina ◽  
Saúl Espinosa-Zaragoza ◽  
Juan M. Villarreal-Fuentes ◽  
Virgilio Villalobos-Villalobos ◽  
...  

Objective: To identify the morphometric and biochemical variation in mango fruits var. Ataulfo (Mangifera indica L.) in two contrasting environments with and without conventional management. Design/methodology/approximation: Morphological and biochemical variables were studied in mango fruits var. Ataulfo in two environments, one of them (La Norteña) with Leptosol soil and Aw climate with conventional agrochemical-based management and the other (Santa Cecilia) on Acrisol soil and Am climate with agroecological management. There were 30 fruits used, all from five trees (n=150) per study garden in a state of commercial maturity. Each fruit was considered as an experimental unit, and morphological and biochemical variables were evaluated for each fruit. Results: Increase in fruit weight, higher pH and increase in total soluble solids, but decrease in pulp weight on site with conventional handling. Increase in pulp content and firmness in fruits from the site without handling. Study Limitations/implications: Changes in the amount and distribution of rainfall in both environments each year. Findings / conclusions: Morphological and biochemical modifications are presented. Greater size and weight, pH and TSS content in the conventional production system, but increased pulp and greater firmness, as well as higher citric acid content in the agroecological system. The results suggest differential effects in mango fruits according to the management and environment where they develop.


2020 ◽  
Vol 38 (1) ◽  
pp. 9-18
Author(s):  
Erika Sánchez-Betancourt ◽  
María Cristina García-Muñoz ◽  
Jorge Argüelles-Cárdenas ◽  
Viviana Franco-Flórez ◽  
Víctor Núñez-Zarantes

Colombia requires blackberry genotypes with remarkable traitsthat improve the competitiveness of this product in the country.The objective of this work was to evaluate the characteristicsof the quality attributes in fruits of ten Colombian blackberrygenotypes in order to assess their potential in the berry markets but also as a genetic source to be included in breeding programs. The weight of fruits, the equatorial and longitudinal diameters, volume, firmness, color, juice content, flesh content, seed/fruit weight percentage, soluble solids content, acidity, pH and maturity index were evaluated in fruits collected during three different harvest periods in the province of Cundinamarca. Thirty fruits for every genotype and period were harvested and analyzed. These 10 evaluated genotypes showed important differences that allowed separating them into five different groups; however, genotypes 8, 4 and 6 showed the best results regarding size, color, juice content, total soluble solids content, maturity index, firmness and low acidity. These features make them good candidates for incorporating them into breeding programs. Nonetheless, their soluble solids content was considerably lower than values reported for genotypes Prime Ark, Natchez, Ouachita, and Osage that are recognized for theseremarkable traits.


2010 ◽  
Vol 37 (No. 2) ◽  
pp. 46-55 ◽  
Author(s):  
T. Milošević ◽  
N. Milošević ◽  
I. Glišić ◽  
B. Krška

This study presents results on the performance of apricot (Prunus armeniaca L.) genotypes in Central Serbia. The research included observation and recording of biological (i.e. phenological) traits and in situ sampling of fruits from 1,210 grafted trees for determination of pomological and sensorial traits. A total of 14 genotypes were selected and compared with Hungarian Best (control cultivar). The difference in blossoming time between two years was one month. In 2006, blossoming time was found to be earlier in three genotypes, simultaneous in five genotypes and later in six as compared to the control. In 2007, bloom was earlier in four genotypes, simultaneous in four and later in six genotypes. Average fruit weight ranged from 41.34 ± 0.8 to 81.50 ± 4.1 g, T-5 being the only genotype having the fruit weight lower than Hungarian Best (49.07 ± 2.2 g). The content of soluble solids, total sugars, and mineral matter ranged from 15.72–18.88%, 11.53– 4.99%, and 0.29–0.43%, respectively, and total acidity was 0.77–1.08%. The appearance and the skin colour of the genotypes were highly attractive. They have promising traits which suggest that they can be useful parents in apricot breeding programmes.


2011 ◽  
Vol 32 (4) ◽  
pp. 1098-1104 ◽  
Author(s):  
Marian Guadalupe Hernández Arenas ◽  
Daniel Nieto Angel ◽  
María Teresa Martínez Damian ◽  
Daniel Teliz Ortiz ◽  
Cristian Nava Díaz ◽  
...  

Fruits of five regional selections of rambutan (Nephelium lappaceum L.) were characterized to identify those with international marketing quality to promote their propagation in Mexico, improvement and conservation in germoplasm bank. The fruits were harvested in June, July, and August 2008 and, after each harvest, were assessed for shape (length/diameter), firmness, fruit weight, number of fruits per kilogram, weight and percentage of pericarp, seed and aril, total soluble solids, total sugars, vitamin C content, pH, and titratable acidity. In addition, a sensorial evaluation was carried out with 31 panelists who graded each selection for color, sweetness, and acidity. Fruits of five selections were ovoid, and with the following characteristics: firmness values from 43.7 to 51.0 N, fruit weight ranged from 22.4 to 34.7 g, registering from 28.9 to 45.0 fruits per kg; pericarp weight from 10.5 to 17.3 g (45.9 to 49.9% of the total fruit weight); total seed weight from 2.2 to 2.5 g (7.0 to 10.0%); average arils weight from 8.9 to 13.1 g (37.5 to 41.4%). The fruits had high contents of total soluble solids (17.8 to 20.4 ºBrix), total sugars (211.95 to 242.70 mg/100g in the edible portion), vitamin C (37.9 to 69.1 mg/100 g), pH 5.0, and titratable acidity of 0.20 to 0.28%. The fruits from the RT-01 and RT-05 selections had better attributes in fruit weight, total soluble solids and titratable acidity and were better accepted by the panelists. Harvest date significantly affects rambutan fruit quality; at the middle and end of the season harvested fruits had better qualitative characteristics for the marketing.


1976 ◽  
Vol 59 (2) ◽  
pp. 368-368
Author(s):  
John N Yeatman ◽  
Alan J Senzel ◽  
Janet A Springer

Abstract Computer-generated regression equations to express citric acid corrections for refractometer sucrose readings in frozen concentrate for lemonade were developed from experimentally determined values for °Brix, soluble solids, and citric acid content. These equations have been included in a method for the calculation of soluble solids in frozen concentrate for lemonade. The method has been adopted as official first action.


Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1244
Author(s):  
Ivana Mezeyová ◽  
Ján Mezey ◽  
Alena Andrejiová

Since scientific interest in rhubarb from a culinary point of view is a relatively new issue, the aim of this study was to test five edible cultivars of Rheum rhabarbarum L. (‘Poncho’, ‘Canadian Red’, ‘Valentine’, ‘Red Champagne’, and ‘Victoria’) from a specific culinary perspective, i.e., processing into juice. Total yields (t/ha) were established in six harvests during a two-year field experiment. For juice production and subsequent laboratory analysis, rhubarb petioles from two different harvest terms were used (i.e., harvest term A (HTA) and harvest term B (HTB)). Analyses of total sugar, glucose, fructose, total soluble solids (TSS), total acidity, malic acid, and pH level were determined by FT-IR spectrophotometer. Total yields of petioles varied between 28.77 t/ha (‘Canadian Red’) and 45.58 t/ha (‘Red Champagne’) at a density of 11,000 pl/ha. ‘Red Champagne’ significantly (p < 0.05) reached the highest juice yield potential (85%) and the highest values of glucose (9.97 g/L), total soluble solids (4.37 g/L), and total sugars (54.96 g/L).


Genetika ◽  
2012 ◽  
Vol 44 (1) ◽  
pp. 129-138
Author(s):  
Milan Lukic ◽  
Sladjana Maric ◽  
Ivana Glisic ◽  
Nebojsa Milosevic

Apple (Malus ? domestica Borkh.) is economically the most important species of genus Malus Miller. Developing new apple genotypes is carried out on a large scale in many scientific institutes throughout the world. ?Jonathan? is one of four cultivars which have been used as the most frequent progenitors in apple breeding programmes worldwide. The paper presents six promising apple selections bred at Fruit Research Institute, and ?Jonathan? as the parental cultivar. The assessed selections derived from the crosses ?Jonathan? ? ?Idared? (J/3/60 and J/2/53), [?Jonathan? ? J/54/53/59] ? J/27/127/62 (J/4/106) and ?Jonathan? ? J/54/53/59 (J/1/55, J/1/71 and J/1/15). Major phenological properties (flowering phenophase and harvest time), cropping and pomological properties (morphometrical and chemical characteristics of fruits) were assessed. The highest fruit weight (J/2/53; 188.4 g) and yield per unit area (J/3/60; 34 t ha-1) were reported in selections derived from the cross ?Jonathan? ? ?Idared?. Selections raised from a cross between ?Jonathan? and J/54/53/59 have high quality fruits. The highest soluble solids content was found in J/1/55 (15.3%), while the highest total sugars and acids content was evidenced in J/1/71 (9.61%; 1.46%, respectively).


1969 ◽  
Vol 64 (3) ◽  
pp. 323-329
Author(s):  
A. Pérez ◽  
E. Boneta ◽  
E. Pérez ◽  
J. Green

Ten chironja clonal varieties were studied at the Isabela, Corozal, and Adjuntas Substations with respect to their fruit qualities. The total soluble solids at Isabela and Corozal was 11%, significantly lower than that at Adjuntas, (15%). The total soluble solids increased as the tree became older. The citric acid content at the Isabela and Corozal Substations was 0.6%, significantly lower than that at Adjuntas, (0.9%). Acid content varied significantly between years and Substations. The Brix/acid ratio at Adjuntas was 17, significantly lower than that at Isabela and Corozal, where it was 19. The citric acid content varied among the different clonal varieties. The fruits harvested during 1971 were rounder than those of 1972, which were elongated. The fruits at Adjuntas were smaller and had a significantly lower percentage of juice than those at Isabela and Corozal, which were equal in size and juice content. Fruits at Isabela had significantly lower peel percentage than those at Corozal and Adjuntas, which did not differ. Fruits produced at Isabela had significantly more seeds than those at Corozal and Adjuntas. The number of seeds per fruit varied significantly among years and Substations. The 2-3 and 3-6 clonal varieties had 11 and 14 seconds respectively, significantly fewer than those all other clones. Therefore, these two clones should be propagated by growers who prefer chironja fruits with fewer seeds.


Author(s):  
O. Silva-Marrufo ◽  
R.I. Marín-Tinoco ◽  
J.A. Castañeda-Venegas

The fortification of essential foods that the majority of the population consumes has a very great advantage in nutrition; Since it is one of the most effective ways to fill some deficiencies, the objective of this work is to increase the nutritional value of strawberry cultivation under hydroponic conditions, the methodology started with the disinfection with 10% chlorine of the hydroponic system, it was located In the basket, to place the seedlings, the nutrition was implemented with the initial Steiner's solution at 50% and later at 100%, three salicylic acid (AS) treatments were carried out: 0.0012 g / L, 0.0030 g / L, 0.0070 g / L and control (0 salicylic acid) and Potassium Iodide (KI) with treatments of 0.0014g / L, 0.0016g / L and 0.0018g / L and control (0 iodine). In soluble solids, a total of three fruits were selected per treatment, it was shown that (T3), repetition 1 (0.0014 g / L) with KI, obtained an average of 8 fruits, the (T1), repetition 2 (0.0030 g / L) with AS (Salicylic Acid) with an average of 23.3 g of fruit weight, repetition 1 (0.0014 g / L) with IK, obtained an average of 8.8000 ºBrix, the ANOVA analysis shows in AS a P value of 0.034, in the control has a P value of 0.054 and in IK a P value of 0.040, which tells us that there is a positive significance in relation to the control towards the weight of the fruits, for which treatment number three is suggested for subsequent work . Keywords: Salicylic acid, potassium iodide, strawberry, NFT system and refractometer.


Author(s):  
Anderson dos Santos Formiga ◽  
Franciscleudo Bezerra da Costa ◽  
Marcio Santos da Silva ◽  
Emmanuel Moreira Pereira ◽  
Yasmin Lima Brasil

<p>O objetivo do trabalho foi disponibilizar informações sobre os aspectos tecnológicos e nutricionais dos frutos do quipá buscando aplicações para o mesmo na alimentação humana. O quipá é uma planta nativa da região Nordeste, seus frutos, ao contrário do figo-da-índia não é valorizado. Os frutos foram colhidos, acondicionados e conduzidos ao laboratório de Análise de Alimentos, CCTA/UFCG, Pombal-PB. Em seguida foram divididos em quatro lotes e submetidos à extração da polpa. Foram avaliadas as características físicas, físico-químicas e químicas dos frutos do quipá. Os frutos são pequenos, a casca representa mais da metade do peso do fruto e com as sementes dificultam a aceitabilidade dos frutos pelo consumidor. A polpa compõe pouco mais de 20% do peso do fruto, possui pH ácido, com baixa concentração de ácido cítrico e sólidos solúveis inferiores aos frutos de figo-da-índia e do mandacaru, comuns ao semiárido; as concentrações de vitamina C e compostos fenólicos na polpa foram consideradas significativas, o que não ocorreu com os flavonoides e antocianinas, que estavam presentes em baixas concentrações.</p><p align="center"><strong><em>Physical and chemical aspects of fruit Quipá (Tacinga inamoena)</em></strong></p><p><strong>Abstract</strong><strong>: </strong>The objective was to provide information on the technological and nutritional aspects of the fruits of Quipá in order to seek applications for the same in human nutrition. The Quipá is a plant native to the Northeast, its fruit, unlike the fig-of-India is not valued. The fruits were harvested, packaged and taken to the Food Analysis Laboratory, CCTA / UFCG, Pombal-PB. They were then divided into four batches and subjected to extraction of the pulp. the physical, physico-chemical and chemical of the fruits of Quipá were evaluated. The fruits are small, the shell is more than half the weight of the fruit and seeds hinder the acceptability of fruit by the consumer. The pulp makes up just over 20% of the fruit weight, has an acidic pH, with low concentration of citric acid soluble solids and lower the fruit of fig-of-India and mandacaru common to semiarid; concentrations of vitamin C and phenolic compounds were considered significant, which did not occur with the flavonoids and anthocyanins, which were present in low concentrations.</p>


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