Effect of Pre-And Postharvest Treatments with Salicylic Acid on Physicochemical Properties of Pineapple cv. MD2

Cano-Reinoso, Diego Mauricio; Soesanto, Loekas; Kharisun, .; Wibowo, Condro

doi:10.12982/cmujns.2022.039

Cited by 2 publications

(3 citation statements)

References 48 publications

(105 reference statements)

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“…The AsA in MD2 pineapple usually range between 300-600 mg kg -1 at harvest (Lu et al, 2014;Paull and Chen, 2018;Cano-Reinoso et al, 2022a). Besides, previous researches reported a positive correlation between the AsA content in pineapple and its antioxidant activity.…”

Section: Ascorbic Acid (Asa) Content In the Fruitmentioning

confidence: 95%

Fruit collapse incidence and quality of pineapple as affected by biopesticides based on Pseudomonas fluorescens and Trichoderma harzianum

Cano-Reinoso

Soesanto²,

KHARISUN³

et al. 2022

AAS

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In this study the effect of Pseudomonas fluorescens and Trichoderma harzianum based biopesticides on fruit collapse disease incidence and pineapple quality was investigated. The experiment was implemented in a split-plot design with two factors, one involving two inoculation methods (spray and inject), and a second factor involving four treatments, A (control: no biopesticides used), B (Bio P32 from 13 weeks before harvest), C (Bio T10 from 13 weeks before harvest) and D (Bio P32 + Bio T10 from 13 weeks before harvest). The inoculated pathogen was Dickeya zeae. The incidence of fruit collapse, total soluble solids, total acidity, sucrose, ascorbic acid, mineral content, and electrolyte leakage were determined. The inject method caused more fruit collapse incidence than the spray method. Treatments C and D provided the best results having a low incidence of fruit collapse (spray: 5 and 1.7 %, inject: 20 % in both cases), high antioxidant capacity (regarding ascorbic acid), high mineral nutrient content (in terms of Ca and Mg), and low electrolyte leakage content (< 70 % in average), with a healthier cell wall characteristic. Meanwhile, treatments A and B were less efficient in these aspects and promoted the incidence of fruit collapse, especially when the inject method was used, as this was more harmful regarding the fruit physiology. In conclusion, the biopesticides employed can reduce the incidence of fruit collapse and positively affect the fruit quality.

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Section: Ascorbic Acid (Asa) Content In the Fruitmentioning

confidence: 95%

Fruit collapse incidence and quality of pineapple as affected by biopesticides based on Pseudomonas fluorescens and Trichoderma harzianum

Cano-Reinoso

Soesanto²,

KHARISUN³

et al. 2022

AAS

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“…Observations were made on internal browning (IB) index, soluble solid [ºBrix (%) with an Atago hand refractometer], free acid (as citric acid, a titration method with 0.1 N NaOH and phenolphthalein as an indicator), vitamin C (with the 2,6-dichloroindophenol titrimetric method of Association of Official Analytical Chemists (AOAC)), glucose, fructose, and sucrose contents [using the method of High-Performance Liquid Chromatography (HPLC)], fruit weight loss, respiration rate [7], and fruit coating [(analyzed with Scanning Electron Microscope (SEM)].…”

Section: Materials and Treatmentmentioning

confidence: 99%

“…The device was set to measure the amount of CO2 for 1 hour. Then, the data was entered into the computer, and the respiration rate was calculated [7].…”

Section: Materials and Treatmentmentioning

confidence: 99%

Chitosan-based fruit coating as postharvest treatments on two pineapples (Ananas comosus L. Merr) clones

Fahmi

Widodo

Karyanto

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Production of fresh pineapple fruit is dominated by the MD2 clone, while the GP3 clone is used as canned fruit. To be promoted as fresh fruit, the GP3 has some defects, namely a less sweet taste and sensitivity to internal browning (IB) disorders. The clones need fruit coatings, and the two might get responded differently. This study aimed to study the effects of chitosan-based fruit coating mixed with palm stearin and Aloe vera gel on the fruit qualities of the two clones, as well as to seek the potential of the GP3 clone as a fresh fruit. The study used 2 x 4 factorials. The first factor was two clones (GP3 and MD2). The second factor was fruit coatings (control, chitosan, palm stearin + chitosan, and Aloe vera gel + chitosan). The fruits were stored at 7 °C. The results showed that the GP3 started to show the incidence of IB disorders on the 21st day, 2 weeks earlier than the MD2. The MD2 showed a °Brix of 16.82% and vitamin C of 391.45 mg/L, which were significantly higher than the GP3. Meanwhile, the GP3 showed 0.60% acidity, which was significantly higher than the MD2. These indicated that the GP3 should not be used for fresh fruit consumption, mainly because of its sensitivity to IB and lower sweetness compared to the MD2 clone. The chitosan treatment, which was added with Aloe vera or palm stearin, showed a higher vitamin C value than the other treatments.

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Effect of Pre-And Postharvest Treatments with Salicylic Acid on Physicochemical Properties of Pineapple cv. MD2

Cited by 2 publications

References 48 publications

Fruit collapse incidence and quality of pineapple as affected by biopesticides based on Pseudomonas fluorescens and Trichoderma harzianum

Fruit collapse incidence and quality of pineapple as affected by biopesticides based on Pseudomonas fluorescens and Trichoderma harzianum

Chitosan-based fruit coating as postharvest treatments on two pineapples (Ananas comosus L. Merr) clones

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