Abstract
Misran, A., Padmanabhan, P., Sullivan, J. A., Khanizadeh, S. and Paliyath, G. 2015. Composition of phenolics and volatiles in strawberry cultivars and influence of preharvest hexanal treatment on their profiles. Can. J. Plant Sci. 95: 115–126. Biochemical changes of quality-determining components were evaluated in strawberry fruit subjected to preharvest spray treatments using a hexanal-containing formulation that is known to enhance shelf life and quality of fruits. Phenolic compounds and volatiles of fruits of four strawberry cultivars (Mira, Jewel, Kent, and St. Pierre) grown in southern Ontario were characterized by HPLC-MS and solid phase micro extraction (SPME) analysis. Qualitative and quantitative profiles of phenolic compounds varied among the cultivars. In all the cultivars, anthocyanins constituted the most prominent class of phenolic compounds. Volatile profiles of strawberry homogenate differed among the cultivars. Changes in phenolics and volatiles composition were determined in fruits of Mira and Jewel after spraying with a hexanal-containing formulation at weekly intervals. In Jewel, preharvest hexanal spraying altered the profiles of polyphenolic components, while minimal changes were noticed in Mira. Interestingly, very few differences were identified in ester profiles of treated and untreated Mira. In general, hexanal spray application resulted in a decrease in the abundance of several volatile components including esters, ketones, and lactones in treated Jewel compared with the control. The results suggest that cultivar-specific quality changes may result from a preharvest application of hexanal formulations, which may also imply different patterns of metabolite channeling and delay of fruit ripening processes.
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Claims 7
Claim · model-written summary
Phenolic profiles differed among cultivars.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Outcome
- profiles of phenolic compoundse0
- Direction
- variede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Qualitative and quantitative profiles of phenolic compounds varied among the cultivars.”
t0“strawberry cultivars”
Claim · model-written summary
Anthocyanins were the dominant phenolic class in all cultivars.
- Taxon
- strawberryFragaria ×ananassat0
- Outcome
- anthocyanins constituted the most prominent class of phenolic compoundse0
- Direction
- most prominente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all the cultivars, anthocyanins constituted the most prominent class of phenolic compounds.”
t0“strawberry cultivars”
Claim · model-written summary
Volatile profiles differed among cultivars.
- Taxon
- strawberryFragaria ×ananassae0
- Outcome
- Volatile profilese0
- Direction
- differede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Volatile profiles of strawberry homogenate differed among the cultivars.”
Claim · model-written summary
Hexanal altered Jewel polyphenolic profiles.
- Taxon
- strawberryFragaria ×ananassat0
- Material
- Jewele0
- Treatment
- preharvest hexanal sprayinge0
- Outcome
- profiles of polyphenolic componentse0
- Direction
- alterede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Jewel, preharvest hexanal spraying altered the profiles of polyphenolic components”
t0“strawberry cultivars”
Claim · model-written summary
Mira polyphenolics changed minimally after hexanal spraying.
- Taxon
- strawberryFragaria ×ananassat0
- Material
- Mirae0
- Treatment
- hexanal treatmentt0
- Outcome
- minimal changese0
- Direction
- minimal changese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while minimal changes were noticed in Mira.”
t0“strawberry cultivars and influence of preharvest hexanal treatment”
Claim · model-written summary
Treated and untreated Mira had few ester profile differences.
- Taxon
- strawberryFragaria ×ananassat0
- Material
- Mirae0
- Treatment
- treatede0
- Outcome
- ester profilese0
- Direction
- very few differencese0
- Comparator
- untreated Mirae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“very few differences were identified in ester profiles of treated and untreated Mira.”
t0“strawberry cultivars”
Claim · model-written summary
Hexanal reduced several volatile classes in Jewel compared with control.
- Taxon
- strawberryFragaria ×ananassat0
- Material
- Jewele0
- Treatment
- hexanal spray applicatione0
- Outcome
- abundance of several volatile components including esters, ketones, and lactonese0
- Direction
- decreasee0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hexanal spray application resulted in a decrease in the abundance of several volatile components including esters, ketones, and lactones in treated Jewel compared with the control.”
t0“strawberry cultivars”
The same questions in other papers
application · pest · Fragaria x ananassa (strawberry)Positive and negative results
5 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
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See all 15 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.