scholarly journals Elevated Carbon Dioxide Level Suppresses Nutritional Quality of Lettuce and Spinach

2016 ◽  
Vol 07 (01) ◽  
pp. 246-258 ◽  
Author(s):  
Anju Giri ◽  
Brenden Armstrong ◽  
Channa B. Rajashekar
Keyword(s):  
Carbon Dioxide ◽  
Nutritional Quality ◽  
Elevated Carbon Dioxide ◽  
Carbon Dioxide Level

Effect of elevated carbon dioxide on nutritional quality of tomato

1997 ◽  
Vol 20 (10) ◽  
pp. 1975-1978 ◽  
Author(s):  
R.M. Wheeler ◽  
C.L. Mackowiak ◽  
G.W. Stutte ◽  
N.C. Yorio ◽  
W.L. Berry
Keyword(s):  
Carbon Dioxide ◽  
Nutritional Quality ◽  
Elevated Carbon Dioxide

Effects of treatment with elevated carbon dioxide levels on the sensory quality of asparagus

1993 ◽  
Vol 21 (4) ◽  
pp. 349-357 ◽  
Author(s):  
Virginia K. Corrigan ◽  
Alan Carpenter
Keyword(s):  
Carbon Dioxide ◽  
Sensory Quality ◽  
Elevated Carbon Dioxide ◽  
Carbon Dioxide Levels

scholarly journals Acyl-lipid desaturases and Vipp1 cooperate in cyanobacteria to produce novel omega-3 PUFA-containing glycolipids

2020 ◽  
Author(s):  
Leslie B. Poole ◽  
Derek Parsonage ◽  
Susan Sergeant ◽  
Leslie R. Miller ◽  
Jingyun Lee ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Fatty Acids ◽  
Nutritional Quality ◽  
Marine Animal ◽  
Omega 3 ◽  
Acyl Lipid ◽  
Anti Inflammatory ◽  
Animal Food Products ◽  
Long Chain

BackgroundDietary omega-3 (n-3), long chain (LC-, ≥ 20 carbons), polyunsaturated fatty acids (PUFAs) derived largely from marine animal sources protect against inflammatory processes and enhance brain development and function. With the depletion of natural stocks of marine animal sources and an increasing demand for n-3 LC-PUFAs, alternative, sustainable supplies are urgently needed. As a result, n-3 18 carbon and LC-PUFAs are being generated from plant or algal sources, either by engineering new biosynthetic pathways or by augmenting existing systems.ResultsWe utilized an engineered plasmid encoding two cyanobacterial acyl-lipid desaturases (DesB and DesD, encoding Δ15 and Δ6 desaturases, respectively) and “vesicle-inducing protein in plastids” (Vipp1) to induce production of stearidonic acid (SDA,18:4 n-3) at high levels in three strains of cyanobacteria (10, 17 and 27% of total lipids in Anabaena sp. PCC7120, Synechococcus sp. PCC7002, and Leptolyngbya sp. strain BL0902, respectively). Lipidomic analysis revealed that in addition to SDA, the rare anti-inflammatory n-3 LC-PUFA eicosatetraenoic acid (ETA, 20:4 n-3) was synthesized in these engineered strains, and ∼99% of SDA and ETA was complexed to bioavailable monogalactosyldiacylglycerol (MGDG) and digalactosyldiacylglycerol (DGDG) species. Importantly, novel molecular species containing alpha-linolenic acid (ALA), SDA and/or ETA in both acyl positions of MGDG and DGDG were observed in the engineered Leptolyngbya and Synechococcus strains, suggesting that these could provide a rich source of anti-inflammatory molecules.ConclusionsOverall, this technology utilizes solar energy, consumes carbon dioxide, and produces large amounts of nutritionally-important n-3 PUFAs and LC-PUFAs. Importantly, it can generate previously-undescribed, highly bioavailable, anti-inflammatory galactosyl lipids. This technology could therefore be transformative in protecting ocean fisheries and augmenting the nutritional quality of human and animal food products.Broader ContextDietary omega-3 (n-3), long chain polyunsaturated fatty acids (LC-PUFAs) typically found in marine products such as fish and krill oil are beneficial to human health. In addition to human consumption, most of the global supply of n-3 LC-PUFAs is used as dietary components for aquaculture. Marked increases in usage have created an intense demand for more sustainable, stable and bioavailable forms of n-3 PUFAs and LC-PUFAs. We utilized an engineered plasmid to dramatically enhance the production of 18-carbon and n-3 LC-PUFAs in three strains of autotrophic cyanobacteria. While the sustainable generation of highly valued and bioavailable nutritional lipid products is the primary goal, additional benefits include the generation of oxygen as a co-product with the consumption of only carbon dioxide as the carbon source and solar radiation as the energy source. This technology could be transformative in protecting ocean fisheries and augmenting the nutritional quality of human and animal food products. Additionally, these engineered cyanobacteria can generate previously undescribed, highly bioavailable, anti-inflammatory galactosyl lipids.

scholarly journals Interactive effects of elevated carbon dioxide and nitrogen availability on fruit quality of cucumber (Cucumis sativus L.)

2018 ◽  
Vol 17 (11) ◽  
pp. 2438-2446 ◽  
Author(s):  
Jin-long DONG ◽  
Xun LI ◽  
Gruda Nazim ◽  
Zeng-qiang DUAN
Keyword(s):  
Carbon Dioxide ◽  
Cucumis Sativus ◽  
Fruit Quality ◽  
Nitrogen Availability ◽  
Elevated Carbon Dioxide ◽  
Interactive Effects ◽  
Cucumis Sativus L

Elevated carbon dioxide level along with phosphorus application and cyanobacterial inoculation enhances nitrogen fixation and uptake in cowpea crop

2017 ◽  
Vol 63 (13) ◽  
pp. 1927-1937 ◽  
Author(s):  
Sumit Kumar Dey ◽  
Bidisha Chakrabarti ◽  
Radha Prasanna ◽  
Devesh Pratap ◽  
Shiv Dhar Singh ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Nitrogen Fixation ◽  
Elevated Carbon Dioxide ◽  
Carbon Dioxide Level ◽  
Phosphorus Application

scholarly journals Changes in Anthocyanin Concentration, Phenylalanine Ammonia Lyase, and Glucosyltransferase in the Arils of Pomegranates Stored in Elevated Carbon Dioxide Atmospheres

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 496F-497 ◽  
Author(s):  
Deirdre M. Holcroft ◽  
Maria I. Gil ◽  
Adel A. Kader
Keyword(s):  
Carbon Dioxide ◽  
Phenylalanine Ammonia Lyase ◽  
Anthocyanin Biosynthesis ◽  
Punica Granatum ◽  
Elevated Carbon Dioxide ◽  
Storage Life ◽  
Red Color ◽  
Anthocyanin Concentration

The influence of CO2 on color and anthocyanin concentration in the arils of `Wonderful' pomegranate (Punica granatum L.) was investigated. Pomegranates were placed in jars ventilated continuously with air or air enriched with 10% or 20% CO2 at 10°C for 6 weeks. Samples were taken initially, and after 1, 2, 4, and 6 weeks and anthocyanin concentration was measured by HPLC. The arils of the pomegranates stored in air were deeper red than those stored in CO2-enriched atmospheres. This increase in red color resulted from an increase in anthocyanin concentration. Arils from fruit stored in air+10% CO2 had a lower anthocyanin concentration than air-stored fruit, and atmospheres enriched with 20% CO2 suppressed anthocyanin biosynthesis. Anthocyanin concentration was well-correlated to the activity of phenylalanine ammonia lyase (PAL), but not to glucosyltransferase (GT) activity. Moderate CO2 atmospheres (10%) prolong the storage life and maintain the quality of pomegranates, including an adequate red color of the arils.

Synergistic action of tropospheric ozone and carbon dioxide on yield and nutritional quality of Indian mustard (Brassica juncea (L.) Czern.)

2013 ◽  
Vol 185 (8) ◽  
pp. 6517-6529 ◽  
Author(s):  
Satyavan Singh ◽  
Arti Bhatia ◽  
Ritu Tomer ◽  
Vinod Kumar ◽  
B. Singh ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Brassica Juncea ◽  
Tropospheric Ozone ◽  
Nutritional Quality ◽  
Indian Mustard ◽  
Synergistic Action

Yield and Nitrogen Uptake in Wheat and Chickpea Grown Under Elevated Carbon Dioxide Level

2019 ◽  
Vol 43 (2) ◽  
pp. 109-113
Author(s):  
B. Chakrabarti ◽  
S. D. Singh ◽  
A. Bhatia ◽  
V. Kumar ◽  
R. C. Harit
Keyword(s):  
Carbon Dioxide ◽  
Nitrogen Uptake ◽  
Elevated Carbon Dioxide ◽  
Carbon Dioxide Level
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