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Molecules 2017, 22(7), 1046; doi:10.3390/molecules22071046

Use of Ultrasonication Technology for the Increased Production of Plant Secondary Metabolites

Department of Biotechnology, Yeungnam University, Gyeongsan 38541, Korea
Author to whom correspondence should be addressed.
Received: 15 June 2017 / Revised: 22 June 2017 / Accepted: 22 June 2017 / Published: 23 June 2017
(This article belongs to the Section Metabolites)
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Plant secondary metabolites (PSMs) provide taste, color, odor, and resistance to plants, and they are also used to treat cancer and cardiovascular diseases. Synthesis of PSMs in plants is stimulated in response to different forms of external stress. Use of ultrasonication (US) to clean or decontaminate fruits and vegetables leads to physical stress that finally results in the accumulation of PSMs. US can stimulate accumulation of taxol, ginsenoside saponins, shikonin, and resveratrol, e.g., up to 319-fold increase of resveratrol synthesis has been observed in grape due to US. US also increases carotenoids, total phenolics, and isoflavonoids accumulation. Furthermore, US shows synergistic effects in PSMs synthesis-when combined with ultraviolet (UV) irradiation, jasmonic acid (JA) or salicylic acid (SA). It has been observed that US stimulates the production of reactive oxygen species (ROS) which then upregulates expression of phenylalanine ammonia lyase (PAL), resulting in the synthesis of PSMs. In this review, we summarize the effects of US, as a physical stress, to maximize the accumulation of PSMs in crop produce and in cell cultures. View Full-Text
Keywords: plant secondary metabolites; ultrasonication; biosynthesis; stimulation; plant response plant secondary metabolites; ultrasonication; biosynthesis; stimulation; plant response

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Hasan, M.M.; Bashir, T.; Bae, H. Use of Ultrasonication Technology for the Increased Production of Plant Secondary Metabolites. Molecules 2017, 22, 1046.

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