Results 31 to 40 of about 110,602 (298)

Research Progress on the Degradation of and Preservation Techniques for Chlorophyll in Vegetables during Thermal Processing [PDF]

open access: yesShipin Kexue
Chlorophyll imparts a green color to vegetables and possesses antioxidant, antimicrobial, immunomodulatory, and anticancer functions. However, it is unstable during thermal processing and easily degraded, resulting in loss of its bioactivity, thereby ...
LONG Yangyang, LEI Yujie, MA Xiaoyun, MIN Tiantian, ZHAO Ting, YUE Jin
doaj   +1 more source

Predicción de la frescura del aceite de oliva virgen extra durante el almacenamiento mediante espectroscopía de fluorescencia [PDF]

open access: yes, 2017
Virgin olive oil quality relates to flavor and unique health benefits. Some of these properties are at the most desirable level when the oil is just extracted, since it is not a product that improves with age.
Aparicio, R.   +5 more
core   +2 more sources

PHOTODEGRADATION AND ANTIOXIDANT ACTIVITY OF CHLOROPHYLL a FROM SPIRULINA (Spirulina sp.) POWDER

open access: yesIndonesian Journal of Chemistry, 2010
Research on chlorophyll a from Spirulina (Spirulina sp.) powder has been done in order to determine chlorophyll a content, to compare degradation pattern and kinetics degradation of chlorophyll a and crude extract as well as to investigate the difference
Rebecca Christiana   +2 more
doaj   +1 more source

High-resolution temporal profiling of transcripts during Arabidopsis leaf senescence reveals a distinct chronology of processes and regulation [PDF]

open access: yes, 2011
Leaf senescence is an essential developmental process that impacts dramatically on crop yields and involves altered regulation of thousands of genes and many metabolic and signaling pathways, resulting in major changes in the leaf.
Beynon, Jim   +24 more
core   +2 more sources

Phytochrome activates the plastid-encoded RNA polymerase for chloroplast biogenesis via nucleus-to-plastid signaling. [PDF]

open access: yes, 2019
Light initiates chloroplast biogenesis by activating photosynthesis-associated genes encoded by not only the nuclear but also the plastidial genome, but how photoreceptors control plastidial gene expression remains enigmatic.
Blaha, Gregor M   +6 more
core   +2 more sources

LED White Light Treatment Delays Postharvest Senescence of ‘Zaosu’ Pear Fruit with Inhibited Chlorophyll Degradation

open access: yesHorticulturae, 2023
To investigate the effects of LED white light treatment (LWT) on the storage quality of postharvest ‘Zaosu’ pears, as well as its role in maintaining fruit greenness and delaying senescence, pear fruits were treated with intermittent irradiation using ...
Hongbo Mi   +4 more
doaj   +1 more source

Assessment of senescence of cut flowers in Chrysanthemum morifolium L. as judged from chlorophyll fluorescence characteristics of leaves on the same shoot

open access: yes浙江大学学报. 农业与生命科学版, 2005
Chlorophyll fluorescence parameters were measured by pulse-amplitude modulation (PAM) fluoremetry on the leaves of Chrysanthemum morifolium L. cut flowering shoots.
ZHANG Yan-qin   +3 more
doaj   +1 more source

The HY5-PIF regulatory module coordinates light and temperature control of photosynthetic gene transcription [PDF]

open access: yes, 2014
The ability to interpret daily and seasonal alterations in light and temperature signals is essential for plant survival. This is particularly important during seedling establishment when the phytochrome photoreceptors activate photosynthetic pigment ...
A Alboresi   +88 more
core   +5 more sources

Evidence of late Quaternary environmental change in a continental east Antarctic lake from lacustrine sedimentary pigment distributions [PDF]

open access: yes, 2005
A sediment core from Progress Lake, one of the oldest lacustrine sequences in East Antarctica, contains distinct zones dating from a previous interglacial (most likely Marine Isotope Stage 5e, c.
Hodgson, D A, Keely, B J, Squier, A H
core   +2 more sources

The Senescence-Induced Staygreen Protein Regulates Chlorophyll Degradation [PDF]

open access: yesThe Plant Cell, 2007
Abstract Loss of green color in leaves results from chlorophyll (Chl) degradation in chloroplasts, but little is known about how Chl catabolism is regulated throughout leaf development. Using the staygreen (sgr) mutant in rice (Oryza sativa), which maintains greenness during leaf senescence, we identified Sgr, a senescence-associated ...
So-Yon, Park   +12 more
openaire   +2 more sources

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