On the Enigma of Chlorophyll Degradation: The Constitution of a Secoporphinoid Catabolite

1991 ◽  
Vol 30 (10) ◽  
pp. 1315-1318 ◽  
Author(s):  
Bernhard Kräutler ◽  
Bernhard Jaun ◽  
Philippe Matile ◽  
Karlheinz Bortlik ◽  
Maja Schellenberg
Keyword(s):  
Chlorophyll Degradation

scholarly journals Effect of Oxidative Stress on Physicochemical Quality of Taiwanese Seagrape (Caulerpa lentillifera) with the Application of Alternating Current Electric Field (ACEF) during Post-Harvest Storage

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1011
Author(s):  
Andi Syahrullah Sulaimana ◽  
Chao-Kai Chang ◽  
Chih-Yao Hou ◽  
Bara Yudhistira ◽  
Fuangfah Punthi ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Electric Field ◽  
Alternating Current ◽  
Chlorophyll Degradation ◽  
Physicochemical Quality ◽  
Post Harvest ◽  
Caulerpa Lentillifera ◽  
Different Seasons ◽  
Current Electric Field

This study aims to determine the physicochemical quality of seagrape (Caulerpa lentillifera) as a freshness label for products cultivated in different seasons. The applied post-harvest storage experiments compared between, within and without seawater that led to oxidative stress conditions. Water content, malondialdehyde (MDA) compound, total phenolic content (TPC), and chlorophyll content were observed at 0, 3, 6, and 9 days of storage. The storage without seawater showed sharper quality reductions by reaching 20–40% of water loss, 70–90% of MDA production, 15–25% of TPC reduction, and 40–60% of total chlorophyll degradation. The storage within seawater showed lower quality reductions due to the specific growth rates still reaching 5–10%. This study found that the greater the physicochemical quality, the slower the decomposition rates of the stored seagrape during storage. Therefore, the seagrapes’ obvious discoloration occurred earlier in winter, followed by summer and spring. Kinetics of chlorophyll degradation on seagrape in different seasons meet different order-reactions during storage. Furthermore, alternating current electric field (ACEF) treatment with 125 kV/m of intensity for 60 min can lower the spring seagrapes’ physicochemical quality by reaching 10–30% of inhibition, resulting in the shelf-life extension for up to 12 days of post-harvest storage.

scholarly journals Cloning of chlorophyllase, the key enzyme in chlorophyll degradation: Finding of a lipase motif and the induction by methyl jasmonate

1999 ◽  
Vol 96 (26) ◽  
pp. 15362-15367 ◽  
Author(s):  
T. Tsuchiya ◽  
H. Ohta ◽  
K. Okawa ◽  
A. Iwamatsu ◽  
H. Shimada ◽  
...  
Keyword(s):  
Methyl Jasmonate ◽  
Chlorophyll Degradation ◽  
Key Enzyme

scholarly journals NYEs/SGRs-mediated chlorophyll degradation is critical for detoxification during seed maturation in Arabidopsis

2017 ◽  
Vol 92 (4) ◽  
pp. 650-661 ◽  
Author(s):  
Zhongpeng Li ◽  
Shouxin Wu ◽  
Junyi Chen ◽  
Xiaoyan Wang ◽  
Jiong Gao ◽  
...  
Keyword(s):  
Seed Maturation ◽  
Chlorophyll Degradation
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