scholarly journals Effect of Graft and Nano ZnO on Nutraceutical and Mineral Content in Bell Pepper

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2793
Author(s):  
José-Gerardo Uresti-Porras ◽  
Marcelino Cabrera-De-La Fuente ◽  
Adalberto Benavides-Mendoza ◽  
Emilio Olivares-Sáenz ◽  
Raul I. Cabrera ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Nutrient Content ◽  
Nutritional Composition ◽  
Bell Pepper ◽  
Soluble Solids ◽  
Fruit Firmness ◽  
Total Phenols ◽  
Total Proteins ◽  
Zno Nps ◽  
Pepper Plants

The objective of this experiment was to evaluate the effects of grafting, zinc oxide nanoparticles (ZnO NPs), and their interaction on the nutritional composition of bell pepper plants. The treatments evaluated included grafted and non-grafted pepper plants with four concentrations of ZnO NPs (0, 10, 20, 30 mg L−1) applied to the foliage. The following parameters were evaluated: content of N, P, K+, Ca2+, Mg2+, Mn2+, Zn2+, Fe2+, Cu2+, total antioxidants, ascorbic acid, total phenols, glutathione, total proteins, fruit firmness, and total soluble solids. Grafting increased the content of N 12.2%, P 15.9%, K+ 26.7%, Mg2+ 20.3%, Mn2+ 34.7%, Zn2+ 19.5%, Fe2+ 18.2%, Cu2+ 11.5%, antioxidant capacity 2.44%, ascorbic acid 4.63%, total phenols 1.33%, glutathione 7.18%, total proteins 1.08%, fruit firmness 8.8%. The application of 30 mg L−1 ZnO NPs increased the content of N 12.3%, P 25.9%, Mg2+ 36.8%, Mn2+ 42.2%, Zn2+ 27%, Fe2+ 45%, antioxidant activity 13.95%, ascorbic acid 26.77%, total phenols 10.93%, glutathione 11.46%, total proteins 11.01%, and fruit firmness 17.7% compared to the control. The results obtained demonstrate the influence of the use of grafts and ZnO NPs as tools that could improve the quality and nutrient content in fruits of bell pepper crops.

scholarly journals Effect of sucralose and biostimulant on pre-and postharvest of blueberries (Vaccinium corymbosum L. cv. Elliot ) under organic and conventional production systems

2015 ◽  
Vol 65 (2) ◽  
pp. 123-129
Author(s):  
Nelson Eduardo Loyola lópez ◽  
Flavio Aguirre Poblete ◽  
Oscar Godoy Astudillo
Keyword(s):  
Ascorbic Acid ◽  
Sensory Evaluation ◽  
Dry Matter ◽  
Production Systems ◽  
Vaccinium Corymbosum ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Fruit Firmness ◽  
Post Harvest ◽  
Conventional Production

<p><em></em>Blueberries (Vaccinium corymbosum L. cv. Elliot) from organic and conventional sources were subjected to either a pre-harvest application with an organic biostimulant or a post-harvest coverage with sucralose. Fruits were assessed in terms of firmness, dry matter, ascorbic acid, soluble solids, sensory attributes and color, during storage at 0 °C and RH of 90%, for a period of 21 days. Each trial with three treatments: T0correspondingto the control, T1to an application of biostimulant, 22 days before harvest, and T2 to a post-harvest coverage with sucralose. Fruits were evaluated in sensory aspect, with the participation of thirteen panelists, on day fifteen after being harvested and stored. Evaluations of both maturity and quality parameters were performed on days 1,7, 14and 21post-harvest.Pre-harvest treatment with the organic biostimulant showed a higher variation in dry matter and soluble solids, but these variations are not significant. The group with a coverage of Sucralose showed a significant increase in fruit firmness. The best sensory evaluation, was given by the panelists to the organic farming. Fruit measurements, such as color, ascorbic acid and colorimetry showed no significant differences in the results</p><p> </p>

scholarly journals BIOACTIVE COMPOUNDS IN CONVENTIONAL AND NO ADDED SUGARS RED STRAWBERRY GUAVA (Psidium cattleianum Sabine) JELLIES

2016 ◽  
Vol 38 (3) ◽  
Author(s):  
GABRIELA NIEMEYER REISSIG ◽  
LISIANE PINTANELA VERGARA ◽  
RODRIGO CEZAR FRANZON ◽  
ROSANE DA SILVA RODRIGUES ◽  
JOSIANE FREITAS CHIM
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Bioactive Compounds ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Total Phenols ◽  
Total Carotenoids ◽  
Added Sugar ◽  
Added Sugars ◽  
Significant Difference

ABSTRACT This study aimed to prepare jellies of conventional type of red strawberry guava (with added sucrose) and no added sugar and evaluate the physical and chemical composition and content of bioactive compounds in them. Four jellies formulations were prepared: conventional with addition of sucrose (F1), aspartame (F2), saccharin and cyclamate (F3), acesulfame and sucralose (F4). Physicochemical analysis of pH were carried out, as well as analysis of titratable acidity, total soluble solids, ashes, proteins, lipids, moisture, carbohydrates, calories, lightness, color tone, total phenols, anthocyanins, carotenoids, ascorbic acid and antioxidant activity, by the capture of DPPH and ABTS radicals. Conventional and no added sugars jellies did not differ for total phenols, total anthocyanins and ascorbic acid. However, processing exerted significant influence (p=0.05) on total carotenoids and antioxidant activity. It is feasible to use red strawberry guava for the preparation of conventional and no added sugar jellies. The products, however, show a significant difference in carotenoids content, with the highest content of these and higher antioxidant activity in processed jellies without sugars addition.

scholarly journals Microwave Assisted Batch Sterilization of Apple Juice

2019 ◽  
Vol 9 (2) ◽  
pp. 1087-1091
Keyword(s):  
Ascorbic Acid ◽  
Acid Content ◽  
Apple Juice ◽  
Power Level ◽  
Ascorbic Acid Content ◽  
Nutrient Content ◽  
Weibull Model ◽  
Nutrient Loss ◽  
Soluble Solids ◽  
Time Duration

A study was carried out to determine the effect of microwave exposure time and power level on the destruction of E.coli and yeast in apple juice. The locally procured apple juice was subjected to microwave treatment of power level 180-900W for various time duration of 20-100s.The time and power level parameters of the microwave were optimized based on the inactivation of the microorganisms present in the juice. E.coli was found to be inactivated at 90s with 900W power. Yeast was completely inactivated at 60 s with 450W power level. The results of inactivation were modeled using GInafit software. Among the various models, Weibull model and Double Weibull model were found to be the best fit for E.coli and yeast, respectively. Nutrient content of the fresh and microwave treated juice were analyzed for total sugar, reducing sugar, total soluble solids and ascorbic acid content. It was inferred from the results that there was no nutrient loss in the post treated samples whereas, the ascorbic acid content decreased considerably.

scholarly journals Effect of Foliar Fertilization of Boron, Zinc and Iron on Fruit Quality and Leaf Nutrients Content of Peach cv. Shan-e-Punjab

2020 ◽  
pp. 43-51
Author(s):  
Besmellah Muradi ◽  
Anil Kumar Godara
Keyword(s):  
Ascorbic Acid ◽  
Boric Acid ◽  
Fruit Quality ◽  
Boron Content ◽  
Block Design ◽  
Foliar Spray ◽  
Zinc Content ◽  
Nutrient Status ◽  
Nutrient Content ◽  
Soluble Solids

Aims: To study the effect of different micronutrients and number of foliar spray on fruit quality and leaf nutrient content of peach. Study Design: The experiment comprised of seven treatments and conducted on seven years old plants in Randomized Block Design with three replications. Place and Duration of Study: The experiment was conducted at the experimental orchard of Department of Horticulture, CCS Haryana Agricultural University, Hisar during the year 2018. Methodology: The treatments included in the study consisted of three micro-nutrients [T1- ZnSO4 @ 0.2%, T2- ZnSO4 @ 0.3%, T3- FeSO4 @ 0.2%, T4- FeSO4 @ 0.3%, T5- Boric acid @ 0.1%, T6- Boric acid @ 0.2%, T7- Control (water spray)] each applied as foliar spray at different concentration as single and double spray. Results: The results showed that foliar spray of micronutrients significantly improved quality and leaf nutrient status in peach cv. Shan-e-Punjab. The foliar spray of FeSO4 @ 0.2% (T3) found to be the best treatment with respect to TSS (11.06%), ascorbic acid (8.18 mg/100 g pulp) and leaf iron content (345.51 ppm). The highest TSS: ratio (23.88), leaf zinc content (35.42 ppm) and lowest acidic fruits (0.45%) was observed from the plants sprayed with T1 (ZnSO4 @ 0.2%), whereas, highest leaf boron content (91.02 ppm) was recorded with T6 (Boric acid @ 0.2%). Double foliar spray of micronutrients (Fe, Zn and B) at first week of March + April significantly TSS, TSS: acidity, ascorbic acid, leaf zinc, iron, and boron content and reduced acidity fruits then single foliar spray in first week of March. Conclusion: The foliar spray of ZnSO4 @ 0.2% (T1) proved to be best treatment in terms of quality. A double spray of micronutrients (Fe, Zn and B) significantly increased total soluble solids, TSS: acidity, ascorbic acid, leaf (zinc, iron, and boron) content and reduced fruit acidity as compared to single spray.

scholarly journals Heterosis for post harvest and nutritional quality traits in tomato (Solanum lycopersicum L.)

2016 ◽  
Vol 8 (4) ◽  
pp. 1987-1991
Author(s):  
Rakesh Kumar ◽  
H. R. Sharma ◽  
Manish Kumar
Keyword(s):  
Ascorbic Acid ◽  
Shelf Life ◽  
Nutritional Quality ◽  
Soluble Solids ◽  
Quality Traits ◽  
Fruit Firmness ◽  
Total Soluble Solids ◽  
Post Harvest ◽  
Lycopene Content ◽  
Pericarp Thickness

A study was conducted in tomato using an 6 x 6 diallel crossing design excluding reciprocals to quantify the magnitude of heterosis and to identify the best heterotic combinations for post harvest and nutritional quality attributes viz. pericarp thickness (mm), fruit firmness (g/0.503 cm2), shelf life (days), total soluble solids (oBrix), lycopene content (mg/100g) and ascorbic acid (mg/100g) which are considered essential in present day hybrid varieties of tomato from consumer point of view. All the 22 entries (6 parents, 15 F1 hybrids and 1 standard check) were field evaluated using randomized complete block design with three replications during Kharif 2015-16. Highly significant heterosis (5% level of significance) of positive nature was found for pericarp thickness (22.90%, 32.20% and 5.62%), fruit firmness (17.32%, 56.72% and 9.21%), shelf life (17.54%, 24.87% and 9.57%), total soluble solids (24.44%, 51.44% and 34.20%), lycopene content (28.75%, 35.05% and 25.63%) and ascorbic acid (19.07%,30.00% and 17.85%) over the better, mid and standard check, respectively. Three promising crosses viz., Solan Lalima x EC-1055, Solan Lalima x EC-1057 and Solan Lalima x EC-1058 were identified as high yielding F1 combinations having superiority to post harvest and nutritional quality traits in tomato and can be promoted for release and commercial cultivation.

scholarly journals 1-Methylcyclopropene Optimal Concentration and Treatment Conditions for Extending Storage Life of Strawberries

2015 ◽  
Vol 15 (4) ◽  
pp. 351
Author(s):  
Mirjana Žabić ◽  
Boris Pašalić ◽  
Borut Bosančić
Keyword(s):  
Titratable Acidity ◽  
Cost Effective ◽  
Storage Life ◽  
Optimal Concentration ◽  
Soluble Solids ◽  
Fruit Firmness ◽  
Total Phenols ◽  
Treatment Conditions ◽  
Cold Room ◽  
Total Anthocyanins

Given that strawberries are very short-lived and easily perishable, extending their shelf life would be very cost effective. Strawberries of the Arosa cultivar were treated with various concentrations of 1-methyl­cyclopropene (0.050, 0.100, 0.500 ppm) in order to determine the optimal concentration for extending their storage life. Two different treatment conditions were used: treatment for 2 h at 20°C and treatment for 20h at 4°C. Total phenols content, total anthocyanins, total soluble solids, fruit firmness, titratable acidity, pH and weght loss were monitored for 11 days of storage in the cold room at 3oC. The best results were achieved by treatment with 0.1 ppm 1-methylcyclopropene for 2 h at 20°C.

scholarly journals Effect of Post-Harvest Degreening on Quality Parameters of Acid Lime Cv. Balaji

2020 ◽  
pp. 15-27
Author(s):  
Pooja Yaddanapudi ◽  
Kiran Kumar Adapa
Keyword(s):  
Ascorbic Acid ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Fruit Firmness ◽  
Ambient Conditions ◽  
Total Soluble Solids ◽  
Post Harvest ◽  
Acid Lime

Analyze the effect of post-harvest degreening on quality parameters of Acid lime cv. Balaji. The present research was conducted at Post harvest laboratory of College of Horticulture, Sri Konda Laxman Telangana State Horticultural University, Rajendranagar, Hyderabad, during the year 2018-2019. Experiment was designated with two factorial completely randomized design with two factors viz., (A) Ethylene concentrations, (B) Number of pulsings were taken for test and executed with the objective: Effect of post-harvest degreening on quality parameters of Acid lime cv. Balaji. The Acid lime cv. Balaji fruits were harvested and subjected to degreening treatments for one day. The treated Acid lime fruits were stored for sixteen days at ambient conditions. Acid lime fruits picked randomly from treated lot and evaluated for Physiological loss in weight %, Peel thickness mm, Fruit firmness Kg/cm2, Total soluble solids °Bx, Titratable acidity %, Ascorbic acid mg/100 g, Juice recovery % at four days interval by adopting the respective methods. Among all the quality parameters there were gradual increase in Total soluble solids (TSS), Juice recovery, Physiological loss in weight (PLW) and there were decreased trend in Titratable acidity, Peel thickness, Fruit firmness and Ascorbic acid content. Ethylene @ 15 ppm proved the better results for the above parameters. Among different number of pulsings, 1 pulsing in 24 hours @ 24 hrs interval and 2 pulsings in 24 hr @ 12 hrs interval was best.

scholarly journals Bell Pepper (Capsicum annum L.) under Colored Shade Nets: Fruit Yield, Postharvest Transpiration, Color, and Chemical Composition

HortScience ◽  
2020 ◽  
Vol 55 (2) ◽  
pp. 181-187
Author(s):  
Juan Carlos Díaz-Pérez ◽  
Kelly St. John ◽  
Mohammad Yamin Kabir ◽  
J. Alberto Alvarado-Chávez ◽  
Ania M. Cutiño-Jiménez ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Antioxidant Capacity ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Bell Pepper ◽  
Soluble Solids ◽  
Trolox Equivalent Antioxidant Capacity ◽  
Total Phenols ◽  
Marketable Yield ◽  
Fruit Number

Colored shade nets may affect plant growth and fruit yield of horticultural crops. The understanding of how colored shade nets influence plants, however, is far from complete. The objective of this study was to determine the effects of colored shade nets on bell pepper fruit yield, postharvest transpiration, color, chemical composition, and antioxidant capacity. The experiment was conducted in Tifton, GA, during the spring of 2015 and 2016. The experimental design was a randomized complete block with four replications and five colored shade net treatments (black, red, silver, and white nets, and an unshaded control). The nets were placed on the top of wooden rectangular structures (15 m wide × 6 m long × 5 m high), leaving the sides of the structures uncovered. Results showed that in both 2015 and 2016, marketable and total fruit number, yield, and individual fruit weight were reduced under the unshaded treatment. There were inconsistent differences in marketable and total fruit number, yield, and individual fruit weight among colored shade nets. Postharvest fruit transpiration and skin permeance were also reduced in unshaded conditions, and no differences were found among colored shade nets. Fruit color L* and b* values were highest, and a* value was lowest in unshaded conditions. Fruit soluble solids, total phenols, flavonoids, and antioxidant capacity [Cupric Reducing Antioxidant Capacity (CUPRAC) and Trolox Equivalent Antioxidant Capacity (TEAC)] responded differently among colored shade nets in the 2 years. Total phenols, flavonoids, and TEAC, however, were among the highest in unshaded conditions. In conclusion, results of the present study support previous findings that shade nets increase fruit yield and quality in bell pepper compared with fruit produced in unshaded conditions. Nevertheless, there were no consistent differences in fruit total and marketable yield and postharvest fruit transpiration and chemical composition of fruit produced under colored shade nets.

scholarly journals Effects of Forchlorofenuron (CPPU) treatment on fruit properties in the fruit of common guava

2019 ◽  
Vol 72 (2) ◽  
pp. 7
Author(s):  
Zeiynab Sabaghnia ◽  
Fariborz Zaree Nahandi
Keyword(s):  
Ascorbic Acid ◽  
Vitamin C ◽  
Principal Components ◽  
Fruit Size ◽  
Soluble Solids ◽  
Total Acidity ◽  
Fruit Firmness ◽  
Total Soluble Solids ◽  
Guava Fruit

<p>The common guava is a small tree from Myrtacaeae family which is cultivated for its fruits. Researches have explored new methods to promote fruit yields and quality of crops. Application of Forchlorofenuron or CPPU (with Molecular Formula: C12H10CIN3O) improves the fruit size as well as its quality, but there has not been an investigation evaluating its effects on common guava fruit under field conditions. This research was performed to study the effects of different doses of CPPU (0, 10, 20 and 40 mg L-1) on common guava fruit size and quality characteristics under field conditions. Analysis of variance and LSD (least significant differences) mean compression indicated that total soluble solids, total acidity, ascorbic acid or vitamin C, fruit firmness, phenolics, 1,1-Diphenyl-2-picrylhydrazyl (DPPH), polygalacturonase, pectin methyl esterase and ethylene were significantly different in most traits and CPPU-40 produced high means. The principal components (PC) analysis explained 95% of the total variation and the first two principal components (PC1 and PC2) explained 78% and 17% of the total variation, respectively. According to biplot, CPPU-40 had the highest values for all of the measured traits except DPPH, ethylene and polygalacturonase. The most prominent relations by biplot were a strong positive correlation among phenolics, fruit firmness, total acidity, total soluble solids and ascorbic acid as indicated by the small obtuse angles between their vectors. The measured traits were grouped into two clusters and cutoff point verified via Wilks’ lambda statistics. Cluster I consisted of three traits (ascorbic acid or vitamin C, fruit firmness and ethylene) while cluster II included total soluble solids. Findings of this study suggest that CPPU can be used as an effective growth regulator to improve the size and quality of common guava fruit.</p>

scholarly journals Influence of Putrescine Application on Storability, Postharvest Quality and Antioxidant Activity of Two Iranian Apricot (Prunus armeniaca L.) Cultivars

2013 ◽  
Vol 5 (2) ◽  
pp. 212-219 ◽  
Author(s):  
Gholamhossein DAVARYNEJAD ◽  
Mehdi ZAREI ◽  
Elham ARDAKANI ◽  
Mohamad Ebrahim NASRABADI
Keyword(s):  
Antioxidant Activity ◽  
Weight Loss ◽  
Ascorbic Acid ◽  
Total Phenolics ◽  
Titratable Acidity ◽  
Maturity Index ◽  
Soluble Solids ◽  
Fruit Firmness ◽  
Postharvest Storage ◽  
Total Soluble Solids

The limited postharvest storage life of apricot is the focus of this study. Presenting a solution to improve the postharvest storage of studied apricot cultivars is the goal. Studding the effect of different concentration of postharvest putrescine on quality attributes and antioxidant activity of two apricot cultivars during storage is the approach taken. The two apricot cultivars (‘Lasgerdi’ and ‘Shahrodi’) were harvested at the commercial ripening stage, and fruits were immerged in 1, 2, 3 and 4 mM putrescine as well as distilled water (control) for 5 min, then fruits were packed in boxes with polyethylene cover and stored at 4°C and 95% relative humidity for 20 days. The changes in weight loss, fruit firmness, total soluble solids, titratable acidity, pH, maturity index, ascorbic acid, total phenolics and antioxidant activity were estimated after 0, 5, 10, 15 and 20 days during storage. The results showed that the weight loss, total soluble solids, pH and maturity index increased significantly while the fruit firmness, titratable acidity, ascorbic acid, total phenolics and antioxidant activity decreased significantly during storage for both cultivars. During storage, a significant difference between control and putrescine treatments in all measured parameters is observed. The putrescine treatments reduced significantly the weight loss and maintained their firmness. In this condition, the highest and lowest of titratable acidity, ascorbic acid, total phenolics and antioxidant activity were observed in treatments of 4 mM putrescine and control, respectively. The data revealed that the quality of apricot fruits was improved by the use of putrescine treatment due to its effect on delaying the ripening processes.

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