Chlorophyll a  (Synonyms: 叶绿素A)

Chlorophyll a is a key green pigment in oxygenic photosynthesis. Chlorophyll a has the dual functions of light harvesting and converting light energy into chemical energy through charge separation in photosystems I and II. Chlorophyll a has antioxidant activity and anti-inflammatory effects. Chlorophyll a can be used in researches for photosynthetic mechanisms and inflammation-related diseases^[1][2][3][4].

Chlorophyll a (5-20 μg/mL；30 min) 以浓度依赖性方式抑制 HEK293 细胞中 LPS 诱导的 TNF-α 基因表达，5 μg/mL 时几乎完全抑制^[4]。
Chlorophyll a 具有超氧化物和羟基自由基清除活性，其羟基自由基清除的 EC₅₀ 为 260 μg/mL^[4]。

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Chlorophyll a (1%；在椰子油中 (w/w)；局部应用) 可显著抑制 Carrageenan (HY-125474) 诱发的小鼠足部水肿，其疗效与 1% 浓度的 Diclofenac (HY-15036) 相当^[4]。
Chlorophyll a (1%-2% w/v；局部应用) 可显著抑制 Formaldehyde 诱发的大鼠足部水肿，其疗效与 1% 浓度的 Diclofenac 相当^[4]。

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

893.49

C₅₅H₇₂MgN₄O₅

479-61-8

固体

Dark green to black

叶绿素A

Room temperature in continental US; may vary elsewhere.

• [1]. Björn LO, et al. A viewpoint: why chlorophyll a? Photosynth Res. 2009 Feb;99(2):85-98.  [Content Brief]

  [2]. Porcar-Castell A, et al. Linking chlorophyll a fluorescence to photosynthesis for remote sensing applications: mechanisms and challenges. J Exp Bot. 2014 Aug;65(15):4065-95.  [Content Brief]

  [3]. Baker NR, et al. Applications of chlorophyll fluorescence can improve crop production strategies: an examination of future possibilities. J Exp Bot. 2004 Aug;55(403):1607-21.  [Content Brief]

  [4]. Subramoniam A, et al. Chlorophyll revisited: anti-inflammatory activities of chlorophyll a and inhibition of expression of TNF-α gene by the same. Inflammation. 2012 Jun;35(3):959-66.  [Content Brief]