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      Enrichment of carbon dioxide in the atmosphere increases the capsaicinoids content in Habanero peppers (Capsicum chinense Jacq.).

      Journal of the Science of Food and Agriculture
      Atmosphere, Biomass, Capsaicin, analogs & derivatives, metabolism, Capsicum, drug effects, growth & development, Carbon Dioxide, pharmacology, Fruit

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          Abstract

          The effects of the increase of atmospheric CO2 on agricultural productivity have been mainly analyzed through its impact on biomass yield, and little attention has been directed to quality traits, such as nutritional or organoleptic attributes. For this study, plants of hot Habanero pepper (Capsicum chinense Jacq.) were grown in growth chambers under three different CO2 levels: 380 (normal atmospheric value), 760 and 1140 µmol mol(-1), and their effects on pod yield, size, color and pungency, were monitored. The total number of pods per plant increased by 88.5% at the highest CO2 , in comparison to plants grown at normal CO2 conditions. Pod size and yield per plant also increased when plants were grown at the highest CO2 concentration (partial pressure). Furthermore, total capsaicinoids contents in ripe peppers under a high CO2 atmosphere were 27% higher than those from plants under lower concentrations, but it was not the case for immature pods. These data suggest that the increase of atmospheric CO2 could modify specific routes of secondary metabolism as well as others desirable traits, thus affecting the quality of Capsicum pepper products. © 2012 Society of Chemical Industry.

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          Author and article information

          Journal
          23124470
          10.1002/jsfa.5904

          Chemistry
          Atmosphere,Biomass,Capsaicin,analogs & derivatives,metabolism,Capsicum,drug effects,growth & development,Carbon Dioxide,pharmacology,Fruit

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