scholarly journals Nitrogen Limited Red and Green Leaf Lettuce Accumulate Flavonoid Glycosides, Caffeic Acid Derivatives, and Sucrose while Losing Chlorophylls, Β-Carotene and Xanthophylls

PLoS ONE ◽  
2015 ◽  
Vol 10 (11) ◽  
pp. e0142867 ◽  
Author(s):  
Christine Becker ◽  
Branimir Urlić ◽  
Maja Jukić Špika ◽  
Hans-Peter Kläring ◽  
Angelika Krumbein ◽  
...  
Keyword(s):  
Caffeic Acid ◽  
Green Leaf ◽  
Flavonoid Glycosides ◽  
Caffeic Acid Derivatives ◽  
Leaf Lettuce ◽  
Β Carotene

scholarly journals Increasing medicinal and phytochemical compounds of coneflower (Echinacea purpurea L.) as affected by NO3−/NH4+ ratio and perlite particle size in hydroponics

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fatemeh Ahmadi ◽  
Abbas Samadi ◽  
Ebrahim Sepehr ◽  
Amir Rahimi ◽  
Sergey Shabala
Keyword(s):  
Particle Size ◽  
Caffeic Acid ◽  
Culture Media ◽  
Chemical Compounds ◽  
Echinacea Purpurea ◽  
Hydroponic Culture ◽  
Peat Moss ◽  
Root Extract ◽  
Caffeic Acid Derivatives ◽  
Phytochemical Compounds

AbstractMedicinal plants are considered as one of the most important sources of chemical compounds, so preparing a suitable culture media for medicinal plant growth is a critical factor. The present study is aimed to improve the caffeic acid derivatives and alkylamides percentages of Echinacea purpurea root extract in hydroponic culture media with different perlite particle size and NO3−/NH4+ ratios. Perlite particle size in the growing media was varied as very coarse perlite (more than 2 mm), coarse perlite (1.5–2 mm), medium perlite (1–1.5 mm), fine perlite (0.5–1 mm), and very fine perlite (less than 0.5 mm) in different ratios to peat moss (including pure perlite, 50:50 v/v, 30:70 v/v, and pure peat moss). Two NO3−/NH4+ ratios (90:10 and 70:30) were tested in each growing media. All phytochemical analyses were performed according to standard methods using high performance liquid chromatography (HPLC). It was found that the E. purpurea grown in the medium containing very fine-grade perlite with 50:50 v/v perlite to peat moss ratio had the maximum caffeic acid derivatives, including chicoric acid (17 mg g−1 DW), caftaric acid (6.3 mg g−1 DW), chlorogenic acid (0.93 mg g−1 DW), cynarin (0.84 mg g−1 DW), and echinacoside (0.73 mg g−1 DW), as well as, alkylamides (54.21%). The percentages of these phytochemical compounds increased by decreasing perlite particle size and increasing of NO3−/NH4+ ratio. The major alkylamide in the E. purpurea root extract was dodeca-2E, 4E, 8Z-10 (E/Z)-tetraenoic acid isobutylamide in all treatments, ranging from 31.12 to 54.21% of total dry weight. It can be concluded that optimizing hydroponic culture media and nutrient solution has significant effects on E. purpurea chemical compounds.

Phytochemical profile of Orthosiphon aristatus extracts after storage: Rosmarinic acid and other caffeic acid derivatives

Phytomedicine ◽  
2018 ◽  
Vol 39 ◽  
pp. 49-55 ◽  
Author(s):  
Lee Suan Chua ◽  
Cher Haan Lau ◽  
Chee Yung Chew ◽  
Nurul Izzati Mohd Ismail ◽  
Nitnipa Soontorngun
Keyword(s):  
Caffeic Acid ◽  
Rosmarinic Acid ◽  
Caffeic Acid Derivatives ◽  
Phytochemical Profile

scholarly journals Growth analysis of green-leaf lettuce under different sources and doses of organic and mineral fertilization

2019 ◽  
Vol 13 (2) ◽  
pp. 237-247
Author(s):  
Rúbia Rejane Ribeiro ◽  
Jose Luiz Rodrigues Torres ◽  
Valdeci Orioli-Junior ◽  
Hamilton Cesar De Oliveira Charlo ◽  
Dinamar Márcia Da Silva Vieira
Keyword(s):  
Organic Matter ◽  
Growth Analysis ◽  
Chicken Manure ◽  
Residual Effects ◽  
Green Leaf ◽  
Organic Fertilization ◽  
Mineral Fertilization ◽  
Lettuce Yield ◽  
Leaf Lettuce ◽  
Different Sources

The objective of this study was to evaluate the influence of different sources and doses of organic and mineral fertilization on the production of green-leaf lettuce. The experiment design used randomized blocks in a factorial scheme (6×3), with six doses of fertilizers (1 = 0; 2 = 25; 3 = 50; 4 = 100; 5 = 150, and 6 = 200% of the recommended fertilization for green-leaf lettuce crop) and three sources of fertilizers [cattle manure (CaM) and chicken manure (ChM), decomposed, on a wet basis and applied 100% at planting at the doses: CaM – 0, 12.5, 25, 50, 75, 100 Mg ha-1; ChM – 0, 5, 10, 20, 30, 40 Mg ha-1; mineral fertilization (MF) varying the N levels: 0, 37.5, 75, 150, 225, 300 kg ha-1 plus 400 kg ha-1 of P2O5 and 60 kg ha-1 of K2O]. The fertilization with CaM and ChM was more efficient than the MF at increasing the production of green-leaf lettuce, mainly because of  the higher residual effects of P in the Oxisol. The ChM provided a higher soil pH, P and K, while the CaM provided a higher soil Mg, organic carbon and organic matter. The dose with 144% of organic fertilization exclusively on a wet basis corresponding to 72 Mg ha-1 of CaM and 29 Mg ha-1 of ChM resulted in the highest green-leaf lettuce yield.

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