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Muqiu Zhao, Huaibao Zhao, Qianjin Du, and Yunfeng Shi

popularized in agricultural production practice, especially in developing countries. Phenolic compounds isolated from certain plants influence N cycling, which results in a decrease of N losses and represents a key issue for environmental protection worldwide

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Samson Zeray Tesfay, Sakhile Mathe, Albert T. Modi, and Tafadzwanashe Mabhaudhi

provide health benefits beyond basic nutrition. Antioxidants’ vitamins such as ascorbic acids and phenols are important in human nutrition because they function as an anticancer, anti-inflammatory, antiatherosclerotic, antitumor, antimutagenic

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Ivette Guzman, Krystal Vargas, Francisco Chacon, Calen McKenzie, and Paul W. Bosland

; Kim et al., 2016a ; Stommel and Griesbach, 2008 ). Fruit pigmentation involves several groups of compounds including lipid-soluble carotenoids and water-soluble phenolics ( Guzman et al., 2011 ; Rodriguez-Amaya, 2019 ). The importance of natural

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Xin Zhao, Edward E. Carey, Janice E. Young, Weiqun Wang, and Takeo Iwamoto

The inverse relationship between dietary intake of fruit and vegetables and incidence of many chronic diseases has been primarily attributed to the health benefits of phytochemicals ( Heber, 2004 ; Liu, 2003 ). Phenolics constitute the largest

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Malkeet S. Padda and D.H. Picha

( Scalbert et al., 2005 ). Phenolics are one class of naturally occurring bioactive compounds present in many fruits and vegetables. The antioxidant properties of phenolic compounds have been implicated in suppressing various health-related disorders

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Vlasta Cunja, Maja Mikulic-Petkovsek, Franci Stampar, and Valentina Schmitzer

ingredients in common cold remedies ( Coruh and Ercisli, 2010 ; Fenglin et al., 2004 ). Health-beneficial properties of Rosa leaves may be attributed to their content of phenolics, which are known to possess a wide spectrum of bioactive functions such as

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Justine E. Vanden Heuvel and Wesley R. Autio

In recent years, cranberries ( Vaccinium macrocarpon Ait.) have been recognized as a major source of phenolic compounds in the human diet. Research is accruing that demonstrates the positive health benefits of cranberries ( Neto et al., 2005

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Martina Göttingerová, Michal Kumšta, Eliška Rampáčková, Tomáš Kiss, and Tomáš Nečas

of bioactive substances that together provide high antioxidant capacity ( Fratianni et al., 2018 ). Phenolic compounds in apricot are represented primarily by gallic acid, chlorogenic acid, neochlorogenic acid, caffeic acid, pcoumaric acid, ferulic

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Hideka Kobayashi, Changzheng Wang, and Kirk W. Pomper

fruit intake and the lower incidence of chronic diseases ( Ness and Powles, 1997 ; New et al., 2000 ). The chemoprotective properties of fruits have been partly attributed to phenolics such as gallic acid and chlorogenic acid, and the phenolic content

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M.E. Garcia, C.R. Rom, J.B. Murphy, and G.W. Felton

The leaf phenolic content of 25 Malus species obtained from the National Germplasm Repository was evaluated. Two methods were utilized for determination of phenolic quantity and form. Total dihydroxy phenolic content was determined by spectrophotometric method using diphenlboric acid 2 aminoethyl ester as the reagent. These phenolics were quantified by using HPLC. Differences in phenolic quantity and type among the species were observed. This variation will be discussed in relation to apple–insect interactions.