Composition of phenolics and volatiles in strawberry cultivars and influence of preharvest hexanal treatment on their profiles

PadmanabhanPriya,; Alan, SullivanJ.; Khanizadeh, Shahrokh; PaliyathGopinadhan,

doi:10.4141/cjps-2014-245

Cited by 28 publications

(14 citation statements)

References 41 publications

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“…Major individual volatiles in the extract included myrtenol (35%), butanoic acid (7%), mesifuran (7%), ethyl butanoate (7%) and hexyl butanoate (4%). All of the major volatiles identified were previously reported in strawberries [ 64 , 65 , 66 , 67 ].…”

Section: Resultsmentioning

confidence: 80%

Berry Phenolic and Volatile Extracts Inhibit Pro-Inflammatory Cytokine Secretion in LPS-Stimulated RAW264.7 Cells through Suppression of NF-κB Signaling Pathway

Brownmiller

Stebbins

et al. 2020

Antioxidants

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Berries are a rich source of phytochemicals, especially phenolics well known for protective activity against many chronic diseases. Berries also contain a complex mixture of volatile compounds that are responsible for the unique aromas of berries. However, there is very limited information on the composition and potential health benefits of berry volatiles. In this study, we isolated phenolic and volatile fractions from six common berries and characterized them by HPLC/HPLC-MS and GC/GC-MS, respectively. Berry phenolic and volatile fractions were evaluated for an anti-inflammatory effect using lipopolysaccharide (LPS)-stimulated RAW264.7 macrophage cells by measuring levels of pro-inflammatory cytokines and the nuclear factor-kappa B (NF-κB) signaling pathway. Results showed that LPS-induced excessive production of nitric oxide (NO), prostaglandin E2 (PGE2), cyclooxygenase-2 (COX-2), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α), which were inhibited by berry phenolic and volatile extracts. Moreover, berry phenolic and volatile extracts reduced the nuclear translocation of NF-κB by blocking the phosphorylation of p65 and degradation of IκBα. These findings showed that berry volatiles from six berries had comparable anti-inflammatory effects to berry phenolics through the suppression of pro-inflammatory mediators and cytokines expression via NF-κB down-regulation, despite being present in the fruit at a lower concentration.

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Section: Resultsmentioning

confidence: 80%

Berry Phenolic and Volatile Extracts Inhibit Pro-Inflammatory Cytokine Secretion in LPS-Stimulated RAW264.7 Cells through Suppression of NF-κB Signaling Pathway

Brownmiller

Stebbins

et al. 2020

Antioxidants

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“…Each year, haskap plants were sprayed three times with the EFF at weekly intervals starting at the de-greening stage. A stock solution of EFF was prepared according to protocols described by Misran et al (2015). Just before application, a 0.02% (v/v) solution of EFF was prepared by diluting a stock solution with water (1:50 v:v) and thoroughly mixing.…”

Section: Hexanal Treatmentsmentioning

confidence: 99%

Performance of five haskap (Lonicera caerulea L.) cultivars and the effect of hexanal on postharvest quality

et al. 2018

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Growers are challenged to provide premium, ripe haskap fruit to market while limiting the negative attributes associated with over-ripening. Hexanal is an inhibitor of phospholipase D, an enzyme involved in membrane degradation, and has shown promise in extending the longevity of fruit. This study investigated the performance of a hexanal-based preharvest spray for enhancing the quality and shelf life of haskap fruit, an emerging crop in Canada. At two locations in 2015, 2016, and 2017, five cultivars were sprayed with a control treatment or a 0.02% hexanal formulation at 2-3 wk before harvest. Fruit was stored at 4°C and assessed for quality at successive times. Although inconsistent, results suggest a hexanal spray may impart a small benefit to the postharvest quality of haskap fruit. Secondary objectives included describing important agronomic characteristics of haskap and assessing the potential of a hexanal preharvest spray for enhancing fruit retention. Hexanal did not reduce fruit drop and had no effect on quality at harvest. Fruit contained high levels of soluble solids and titratable acids, were very dark in colour, and did not degrade in quality as rapidly as softer fruit crops such as strawberry or raspberry.

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“…To evaluate the physiological and molecular effects of hexanal and other hormones in strawberry fruit quality and shelf-life longevity, fruit from both cultivars were subjected to different pre-harvest treatments, as follows: two different hexanal formulations, EFF1 (0.01% v/v hexanal) and EFF2 (0.02% v/v hexanal), as described in Misran et al (2015), 1-naphthalene acetic acid (NAA; 200mg/L), and abscisic acid (ABA; 200µM). All treatments were applied at 7 days and 3 days before commercial harvest.…”

Section: Plant Materials and Postharvest Treatmentsmentioning

confidence: 99%

Effect of Pre-harvest Application of Hexanal and Growth Regulators in Enhancing Shelf Life and Regulation of Membrane Associated Genes in Strawberry

et al. 2017

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Composition of phenolics and volatiles in strawberry cultivars and influence of preharvest hexanal treatment on their profiles

Cited by 28 publications

References 41 publications

Berry Phenolic and Volatile Extracts Inhibit Pro-Inflammatory Cytokine Secretion in LPS-Stimulated RAW264.7 Cells through Suppression of NF-κB Signaling Pathway

Berry Phenolic and Volatile Extracts Inhibit Pro-Inflammatory Cytokine Secretion in LPS-Stimulated RAW264.7 Cells through Suppression of NF-κB Signaling Pathway

Performance of five haskap (Lonicera caerulea L.) cultivars and the effect of hexanal on postharvest quality

Effect of Pre-harvest Application of Hexanal and Growth Regulators in Enhancing Shelf Life and Regulation of Membrane Associated Genes in Strawberry

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