Abstract
The effect of packaging films on post-harvest life span of tomato in relation to their effect on the activities of potential cell wall hydrolyzing enzymes were investigated. Tomato cv. ‘Punjab Upma’ and ‘Punjab Ratta’ picked at pink stage were placed in open trays, high density polyethylene (HDPE)-, low density polyethylene (LDPE)- and polypropylene (PP)-bags and stored under ambient conditions till their edible state. Irrespective of the variety, there was enhancement in the activities of cell wall hydrolyzing enzymes i.e. polygalacturonase, pectin methylesterase, cellulase and β-galactosidase. Further, there was decrease in firmness with increase in storage period. However, less changes were noticed in tomatoes packaged in polythene bags in comparison to those kept in open trays. Tomato cv. ‘Punjab Ratta’ displayed slow increase in the activities of cell wall hydrolases and less decrease in firmness as compared to cv. ‘Punjab Upma’. In both the varieties, LDPE packaging showed slowest changes in enzymatic activities and firmness and were efficient in enhancing the shelf life of tomatoes.
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Claims 11
Claim · model-written summary
Activity of polygalacturonase rose during storage.
- Taxon
- tomato
Solanum lycopersicume0 - Organ / stage
- pink stagee0
- Gene
- polygalacturonasee0
- Outcome
- enhancement in the activitiese0
- Direction
- enhancemente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of packaging films on post-harvest life span of tomato in relation to their effect on the activities of potential cell wall hydrolyzing enzymes were investigated. Tomato cv. ‘Punjab Upma’ and ‘Punjab Ratta’ picked at pink stage were placed in open trays, high density polyethylene (HDPE)-, low density polyethylene (LDPE)- and polypropylene (PP)-bags and stored under ambient conditions till their edible state. Irrespective of the variety, there was enhancement in the activities of cell wall hydrolyzing enzymes i.e. polygalacturonase, pectin methylesterase, cellulase and β-galactosidase.”
Claim · model-written summary
Activity of pectin methylesterase rose during storage.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- pink stagee0
- Gene
- pectin methylesterasee0
- Outcome
- enhancement in the activitiese0
- Direction
- enhancemente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of packaging films on post-harvest life span of tomato in relation to their effect on the activities of potential cell wall hydrolyzing enzymes were investigated. Tomato cv. ‘Punjab Upma’ and ‘Punjab Ratta’ picked at pink stage were placed in open trays, high density polyethylene (HDPE)-, low density polyethylene (LDPE)- and polypropylene (PP)-bags and stored under ambient conditions till their edible state. Irrespective of the variety, there was enhancement in the activities of cell wall hydrolyzing enzymes i.e. polygalacturonase, pectin methylesterase, cellulase and β-galactosidase.”
Claim · model-written summary
Activity of cellulase rose during storage.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- pink stagee0
- Gene
- cellulasee0
- Outcome
- enhancement in the activitiese0
- Direction
- enhancemente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of packaging films on post-harvest life span of tomato in relation to their effect on the activities of potential cell wall hydrolyzing enzymes were investigated. Tomato cv. ‘Punjab Upma’ and ‘Punjab Ratta’ picked at pink stage were placed in open trays, high density polyethylene (HDPE)-, low density polyethylene (LDPE)- and polypropylene (PP)-bags and stored under ambient conditions till their edible state. Irrespective of the variety, there was enhancement in the activities of cell wall hydrolyzing enzymes i.e. polygalacturonase, pectin methylesterase, cellulase and β-galactosidase.”
Claim · model-written summary
Activity of β-galactosidase rose during storage.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- pink stagee0
- Gene
- β-galactosidasee0
- Outcome
- enhancement in the activitiese0
- Direction
- enhancemente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of packaging films on post-harvest life span of tomato in relation to their effect on the activities of potential cell wall hydrolyzing enzymes were investigated. Tomato cv. ‘Punjab Upma’ and ‘Punjab Ratta’ picked at pink stage were placed in open trays, high density polyethylene (HDPE)-, low density polyethylene (LDPE)- and polypropylene (PP)-bags and stored under ambient conditions till their edible state. Irrespective of the variety, there was enhancement in the activities of cell wall hydrolyzing enzymes i.e. polygalacturonase, pectin methylesterase, cellulase and β-galactosidase.”
Claim · model-written summary
Tomato firmness declined with storage time.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- firmnesse0
- Direction
- decreasee0
- Setting
- ambient conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of packaging films on post-harvest life span of tomato in relation to their effect on the activities of potential cell wall hydrolyzing enzymes were investigated. Tomato cv. ‘Punjab Upma’ and ‘Punjab Ratta’ picked at pink stage were placed in open trays, high density polyethylene (HDPE)-, low density polyethylene (LDPE)- and polypropylene (PP)-bags and stored under ambient conditions till their edible state. Irrespective of the variety, there was enhancement in the activities of cell wall hydrolyzing enzymes i.e. polygalacturonase, pectin methylesterase, cellulase and β-galactosidase. Further, there was decrease in firmness with increase in storage period.”
Claim · model-written summary
Polythene bags reduced changes relative to open trays.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- polythene bagse0
- Outcome
- changese0
- Direction
- lesse0
- Comparator
- open trayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of packaging films on post-harvest life span of tomato in relation to their effect on the activities of potential cell wall hydrolyzing enzymes were investigated. Tomato cv. ‘Punjab Upma’ and ‘Punjab Ratta’ picked at pink stage were placed in open trays, high density polyethylene (HDPE)-, low density polyethylene (LDPE)- and polypropylene (PP)-bags and stored under ambient conditions till their edible state. Irrespective of the variety, there was enhancement in the activities of cell wall hydrolyzing enzymes i.e. polygalacturonase, pectin methylesterase, cellulase and β-galactosidase. Further, there was decrease in firmness with increase in storage period. However, less changes were noticed in tomatoes packaged in polythene bags in comparison to those kept in open trays.”
Claim · model-written summary
Punjab Ratta showed slower increase in cell wall hydrolase activities than Punjab Upma.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Punjab Rattae0
- Outcome
- activities of cell wall hydrolasese0
- Direction
- slow increasee0
- Comparator
- Punjab Upmae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of packaging films on post-harvest life span of tomato in relation to their effect on the activities of potential cell wall hydrolyzing enzymes were investigated. Tomato cv. ‘Punjab Upma’ and ‘Punjab Ratta’ picked at pink stage were placed in open trays, high density polyethylene (HDPE)-, low density polyethylene (LDPE)- and polypropylene (PP)-bags and stored under ambient conditions till their edible state. Irrespective of the variety, there was enhancement in the activities of cell wall hydrolyzing enzymes i.e. polygalacturonase, pectin methylesterase, cellulase and β-galactosidase. Further, there was decrease in firmness with increase in storage period. However, less changes were noticed in tomatoes packaged in polythene bags in comparison to those kept in open trays. Tomato cv. ‘Punjab Ratta’ displayed slow increase in the activities of cell wall hydrolases and less decrease in firmness as compared to cv. ‘Punjab Upma’.”
Claim · model-written summary
Punjab Ratta lost less firmness than Punjab Upma.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Punjab Rattae0
- Outcome
- firmnesse0
- Direction
- less decreasee0
- Comparator
- Punjab Upmae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of packaging films on post-harvest life span of tomato in relation to their effect on the activities of potential cell wall hydrolyzing enzymes were investigated. Tomato cv. ‘Punjab Upma’ and ‘Punjab Ratta’ picked at pink stage were placed in open trays, high density polyethylene (HDPE)-, low density polyethylene (LDPE)- and polypropylene (PP)-bags and stored under ambient conditions till their edible state. Irrespective of the variety, there was enhancement in the activities of cell wall hydrolyzing enzymes i.e. polygalacturonase, pectin methylesterase, cellulase and β-galactosidase. Further, there was decrease in firmness with increase in storage period. However, less changes were noticed in tomatoes packaged in polythene bags in comparison to those kept in open trays. Tomato cv. ‘Punjab Ratta’ displayed slow increase in the activities of cell wall hydrolases and less decrease in firmness as compared to cv. ‘Punjab Upma’.”
Claim · model-written summary
LDPE packaging gave the slowest changes in enzymatic activities.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- LDPE packaginge0
- Outcome
- enzymatic activitiese0
- Direction
- sloweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of packaging films on post-harvest life span of tomato in relation to their effect on the activities of potential cell wall hydrolyzing enzymes were investigated. Tomato cv. ‘Punjab Upma’ and ‘Punjab Ratta’ picked at pink stage were placed in open trays, high density polyethylene (HDPE)-, low density polyethylene (LDPE)- and polypropylene (PP)-bags and stored under ambient conditions till their edible state. Irrespective of the variety, there was enhancement in the activities of cell wall hydrolyzing enzymes i.e. polygalacturonase, pectin methylesterase, cellulase and β-galactosidase. Further, there was decrease in firmness with increase in storage period. However, less changes were noticed in tomatoes packaged in polythene bags in comparison to those kept in open trays. Tomato cv. ‘Punjab Ratta’ displayed slow increase in the activities of cell wall hydrolases and less decrease in firmness as compared to cv. ‘Punjab Upma’. In both the varieties, LDPE packaging showed slowest changes in enzymatic activities and firmness and were efficient in enhancing the shelf life of tomatoes.”
Claim · model-written summary
LDPE packaging gave the slowest changes in firmness.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- LDPE packaginge0
- Outcome
- firmnesse0
- Direction
- sloweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of packaging films on post-harvest life span of tomato in relation to their effect on the activities of potential cell wall hydrolyzing enzymes were investigated. Tomato cv. ‘Punjab Upma’ and ‘Punjab Ratta’ picked at pink stage were placed in open trays, high density polyethylene (HDPE)-, low density polyethylene (LDPE)- and polypropylene (PP)-bags and stored under ambient conditions till their edible state. Irrespective of the variety, there was enhancement in the activities of cell wall hydrolyzing enzymes i.e. polygalacturonase, pectin methylesterase, cellulase and β-galactosidase. Further, there was decrease in firmness with increase in storage period. However, less changes were noticed in tomatoes packaged in polythene bags in comparison to those kept in open trays. Tomato cv. ‘Punjab Ratta’ displayed slow increase in the activities of cell wall hydrolases and less decrease in firmness as compared to cv. ‘Punjab Upma’. In both the varieties, LDPE packaging showed slowest changes in enzymatic activities and firmness and were efficient in enhancing the shelf life of tomatoes.”
Claim · model-written summary
LDPE packaging enhanced shelf life.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- LDPE packaginge0
- Outcome
- shelf lifee0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of packaging films on post-harvest life span of tomato in relation to their effect on the activities of potential cell wall hydrolyzing enzymes were investigated. Tomato cv. ‘Punjab Upma’ and ‘Punjab Ratta’ picked at pink stage were placed in open trays, high density polyethylene (HDPE)-, low density polyethylene (LDPE)- and polypropylene (PP)-bags and stored under ambient conditions till their edible state. Irrespective of the variety, there was enhancement in the activities of cell wall hydrolyzing enzymes i.e. polygalacturonase, pectin methylesterase, cellulase and β-galactosidase. Further, there was decrease in firmness with increase in storage period. However, less changes were noticed in tomatoes packaged in polythene bags in comparison to those kept in open trays. Tomato cv. ‘Punjab Ratta’ displayed slow increase in the activities of cell wall hydrolases and less decrease in firmness as compared to cv. ‘Punjab Upma’. In both the varieties, LDPE packaging showed slowest changes in enzymatic activities and firmness and were efficient in enhancing the shelf life of tomatoes.”
The same questions in other papers
storage · physiology: enzyme activity · Solanum lycopersicum (tomato)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 papers →storage · quality: postharvest · Solanum lycopersicum (tomato)Positive and negative results
140 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
154 papers more in this group
See all 158 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.