Abstract
Browning characteristic of Dioscorea batatas Decne was studied,including the relationship between the distribution of phenols and browning,between the degree of browning and the activities of polyphenol oxidase(PPO),peroxidase(POD),and phenylalanine ammonialyase(PAL),and the effect of pH and tempreture on non-enzymatic browning.The phenols distribution mainly locates near periderm area and midribs in yam tuber,where the most serious browning is present.The relationship between the activities of PPO,POD,PAL and the browning degree shows positive correlation,and the correlation degree ranks:PPOPODPAL.Acidic condition is propitious to inhibiting non-enzymatic browning.Under the lower or higher temperature than 40℃,non-enzymatic browning all decreases.
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Claims 9
Claim · model-written summary
Phenols were concentrated near the periderm and midribs of yam tubers.
- Taxon
- Dioscorea batatas Decne
Dioscorea polystachyat0 - Organ / stage
- periderm area and midribs in yam tubere0
- Outcome
- phenols distributione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The phenols distribution mainly locates near periderm area and midribs in yam tuber”
t0“Dioscorea batatas Decne”
Claim · model-written summary
The most severe browning occurred near the periderm and midribs.
- Taxon
- Dioscorea batatas DecneDioscorea polystachyat0
- Organ / stage
- periderm area and midribs in yam tubere1
- Outcome
- most serious browninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“where the most serious browning is present”
t0“Dioscorea batatas Decne”
e1“The phenols distribution mainly locates near periderm area and midribs in yam tuber”
Claim · model-written summary
PPO activity was positively correlated with browning degree.
- Taxon
- Dioscorea batatas DecneDioscorea polystachyat0
- Gene
- PPOe0
- Outcome
- browning degreee0
- Direction
- positive correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The relationship between the activities of PPO,POD,PAL and the browning degree shows positive correlation”
t0“Dioscorea batatas Decne”
Claim · model-written summary
POD activity was positively correlated with browning degree.
- Taxon
- Dioscorea batatas DecneDioscorea polystachyat0
- Gene
- PODe0
- Outcome
- browning degreee0
- Direction
- positive correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The relationship between the activities of PPO,POD,PAL and the browning degree shows positive correlation”
t0“Dioscorea batatas Decne”
Claim · model-written summary
PAL activity was positively correlated with browning degree.
- Taxon
- Dioscorea batatas DecneDioscorea polystachyat0
- Gene
- PALe0
- Outcome
- browning degreee0
- Direction
- positive correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The relationship between the activities of PPO,POD,PAL and the browning degree shows positive correlation”
t0“Dioscorea batatas Decne”
Claim · model-written summary
The stated enzyme-browning correlation ranked PPO above POD above PAL.
- Taxon
- Dioscorea batatas DecneDioscorea polystachyat0
- Gene
- PPOPODPALe0
- Outcome
- correlation degreee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the correlation degree ranks:PPOPODPAL”
t0“Dioscorea batatas Decne”
Claim · model-written summary
Acidic conditions inhibited non-enzymatic browning.
- Taxon
- Dioscorea batatas DecneDioscorea polystachyat0
- Treatment
- Acidic conditione0
- Outcome
- non-enzymatic browninge0
- Direction
- inhibitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acidic condition is propitious to inhibiting non-enzymatic browning”
t0“Dioscorea batatas Decne”
Claim · model-written summary
Temperatures below 40℃ decreased non-enzymatic browning.
- Taxon
- Dioscorea batatas DecneDioscorea polystachyat0
- Treatment
- lowere0
- Outcome
- non-enzymatic browninge0
- Direction
- decreasese0
- Comparator
- 40℃e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the lower or higher temperature than 40℃,non-enzymatic browning all decreases”
t0“Dioscorea batatas Decne”
Claim · model-written summary
Temperatures above 40℃ decreased non-enzymatic browning.
- Taxon
- Dioscorea batatas DecneDioscorea polystachyat0
- Treatment
- highere0
- Outcome
- non-enzymatic browninge0
- Direction
- decreasese0
- Comparator
- 40℃e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the lower or higher temperature than 40℃,non-enzymatic browning all decreases”
t0“Dioscorea batatas Decne”