Unexpected decrease in yield and antioxidants in vegetable at very high CO2 levels

Fu, Yuming; Shao, Lingzhi; Liu, Hui; Li, Hongyan; Zhao, Zhiruo; Ye, Peiliang; Chen, Pingzhen; Liu, Hong

doi:10.1007/s10311-015-0522-6

Cited by 11 publications

(5 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly, 550 μmol mol -1 CO 2 decreased the concentrations of phenols and flavonoids, and the total antioxidant capacity of tomato fruits to a greater extent than 700 μmol mol -1 , but it increased the concentration of ascorbic acid to a greater degree than that under 700 μmol mol -1 ( Mamatha et al, 2014 ). Differences in product quality among different CO 2 levels were also reported in other studies ( Levine and Paré, 2009 ; Ren et al, 2014 ; Fu et al, 2015 ).…”

Section: Resultssupporting

confidence: 81%

Effects of Elevated CO2 on Nutritional Quality of Vegetables: A Review

et al. 2018

View full text Add to dashboard Cite

Elevated atmospheric CO2 (eCO2) enhances the yield of vegetables and could also affect their nutritional quality. We conducted a meta-analysis using 57 articles consisting of 1,015 observations and found that eCO2 increased the concentrations of fructose, glucose, total soluble sugar, total antioxidant capacity, total phenols, total flavonoids, ascorbic acid, and calcium in the edible part of vegetables by 14.2%, 13.2%, 17.5%, 59.0%, 8.9%, 45.5%, 9.5%, and 8.2%, respectively, but decreased the concentrations of protein, nitrate, magnesium, iron, and zinc by 9.5%, 18.0%, 9.2%, 16.0%, and 9.4%. The concentrations of titratable acidity, total chlorophyll, carotenoids, lycopene, anthocyanins, phosphorus, potassium, sulfur, copper, and manganese were not affected by eCO2. Furthermore, we propose several approaches to improving vegetable quality based on the interaction of eCO2 with various factors, including species, cultivars, CO2 levels, growth stages, light, O3 stress, nutrient, and salinity. Finally, we present a summary of the eCO2 impact on the quality of three widely cultivated crops, namely, lettuce, tomato, and potato.

show abstract

Section: Resultssupporting

confidence: 81%

Effects of Elevated CO2 on Nutritional Quality of Vegetables: A Review

et al. 2018

View full text Add to dashboard Cite

show abstract

“…For this reason, great efforts have been made to understand the evaluation, characteristics and quantification of polyphenols. The concept of circular economy has led to the introduction of “zero waste strategy” for the recovery of such special compounds (Fu et al 2015 ; Romani et al 2020 ). It not only acts as a solution to tackle problems immediately in case of crisis but also provides a long-term sustenance in the food sector.…”

Section: Introductionmentioning

confidence: 99%

Techniques and modeling of polyphenol extraction from food: a review

et al. 2021

View full text Add to dashboard Cite

There is a growing demand for vegetal food having health benefits such as improving the immune system. This is due in particular to the presence of polyphenols present in small amounts in many fruits, vegetables and functional foods. Extracting polyphenols is challenging because extraction techniques should not alter food quality. Here, we review technologies for extracting polyphenolic compounds from foods. Conventional techniques include percolation, decoction, heat reflux extraction, Soxhlet extraction and maceration, whereas advanced techniques are ultrasound-assisted extraction, microwave-assisted extraction, supercritical fluid extraction, high-voltage electric discharge, pulse electric field extraction and enzyme-assisted extraction. Advanced techniques are 32-36% more efficient with approximately 15 times less energy consumption and producing higher-quality extracts. Membrane separation and encapsulation appear promising to improve the sustainability of separating polyphenolic compounds. We present kinetic models and their influence on process parameters such as solvent type, solid and solvent ratio, temperature and particle size.

show abstract

“…Furthermore, NASA reduced the maximum allowable CO 2 concentration of ISS to 4 mmHg (5,332 ppm), with an evidence that CO 2 concentration between 0.5 mmHg (666 ppm) and 2.0 mmHg (2,667 ppm) is optimal to maintain the health and performance of astronauts 26,27 . Our prior studies also demonstrated that, although an appropriate increase in atmospheric CO 2 content increased plant yield, this beneficial effect disappeared when CO 2 was over 2,000 ppm, while an inhibitory effect to the plant occurred when CO 2 levels exceeded 5,000 ppm 28,29 . Compared with the BIOS-3 experiment 3 of Russia and the 105-day Lunar Palace 1 experiment 2 , dynamic atmospheric data of our current system showed a higher stability in CO 2 and O 2 concentrations.…”

Section: O 2 and Co 2 Balancementioning

confidence: 62%

“…4D), indicating that atmospheric fluctuations caused by power loss was small enough for the system to quickly adjust. It is possible that the increase in CO 2 (to ~2,000 ppm) improved plant photosynthesis after the power was restored 28,29 , leading to a new CO 2 concentration stable state in the system in a short time (Fig. ???).…”

Section: Resultsmentioning

confidence: 99%

Establishment of a closed artificial ecosystem to ensure human long-term survival on the moon

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

Bioregenerative life support system (BLSS) is a critical technology maintaining long-term human survival on the Moon or other extraterrestrial bodies. In the current study, we carried out a 370-day integrated high-closure experiment (“Lunar Palace 365” experiment) on the Earth in an upgraded ground-based BLSS experimental facility called “Lunar Palace 1”. This experiment was designed to develop techniques to run and adjust system stability under long-term operation and crew shift change conditions. Eight volunteering crew members were divided into two groups with three time phases: Group I stayed in the cabin for the initial 60-day phase; Group II inhabited the cabin instead for a record-breaking duration of 200 days as the second phase; Group I re-entered the cabin, replaced Group II and stayed for the last 105 days. Our results demonstrated the BLSS had excellent stability with a material closure degree of 98.2%. Levels of O2, CO2 and trace harmful gases were well controlled within ranges optimal for crew health and plant production. The system exhibited a strong robustness and could quickly minimize effects of disturbances through self-feedback adjustments. The efficiency of plant production completely met the crew’s need of plant-based food. The purification efficiency of domestic and sanitary wastewater was up to irrigation standards, and the recovery rate of urine and solid waste achieved 99.7% and 67%, respectively. These results are valuable for further optimization of the BLSS in a lunar base and computer simulations of similar systems.

show abstract

Unexpected decrease in yield and antioxidants in vegetable at very high CO2 levels

Cited by 11 publications

References 32 publications

Effects of Elevated CO2 on Nutritional Quality of Vegetables: A Review

Effects of Elevated CO2 on Nutritional Quality of Vegetables: A Review

Techniques and modeling of polyphenol extraction from food: a review

Establishment of a closed artificial ecosystem to ensure human long-term survival on the moon

Contact Info

Product

Resources

About