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Volume 10
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International Journal of Plant Biology is published by MDPI from Volume 13 Issue 1 (2022). Previous articles were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence, and they are hosted by MDPI on mdpi.com as a courtesy and upon agreement with PAGEPress.
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Article

Use of Pulsed Electric Fields to Induce Breakage of Glandular Trichome Cells in Leaves of Fresh Patchouli (Pogostemon cablin Benth.): Specific Energy Input Consumption

by
Sukardi Sukardi
1,*,
Sudjito Soeparman
2,
Bambang Dwi Argo
3 and
Yudy Surya Irawan
2
1
Department of Agricultural Industrial Technology, Faculty of Agricultural Technology, Brawijaya University, Jl. Veteran, Malang 65145, East Java, Indonesia
2
Department of Mechanical Engineering, Faculty of Engineering, Brawijaya University, Jl. Veteran, Malang 65145, East Java, Indonesia
3
Department of Agricultural Engineering, Faculty of Agricultural Technology, Brawijaya University, Jl. Veteran, Malang 65145, East Java, Indonesia
*
Author to whom correspondence should be addressed.
Int. J. Plant Biol. 2019, 10(1), 7443; https://doi.org/10.4081/pb.2019.7443
Submission received: 11 October 2017 / Revised: 15 December 2017 / Accepted: 15 December 2017 / Published: 20 August 2019

Abstract

Research has been performed using a pulsed electric field (PEF) to damage plant cells to obtain bioactive compounds before extraction. However, research into the use of PEF to break down the glandular trichome (GT) cells of patchouli for essential oil extraction is still limited. The purpose of this study was to determine the specific energy input needed to break patchouli leaf GT cells by PEF treatment. Patchouli leaves were harvested at 7 months of age, then treated with PEF. GT cell changes were analyzed using scanning electron microscopy. The results show that treatment with variable frequencies caused GT cell wrinkling and treatments with a variable electric field caused GT cell rupture. Electric field treatment at E = 133.33 V/cm and a PEF exposure time of 2 seconds or E = 116.66 V/cm and 3 seconds of PEF exposure resulted in consistent rupture of GT cells. Energy consumption of 0.049 kJ/cm3 promoted GT cell wall shrinkage and consumption of 0.59 kJ/cm3 broke GT cell walls.
Keywords: glandular trichome; patchouli; pulsed electric field; SEM glandular trichome; patchouli; pulsed electric field; SEM

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MDPI and ACS Style

Sukardi, S.; Soeparman, S.; Argo, B.D.; Irawan, Y.S. Use of Pulsed Electric Fields to Induce Breakage of Glandular Trichome Cells in Leaves of Fresh Patchouli (Pogostemon cablin Benth.): Specific Energy Input Consumption. Int. J. Plant Biol. 2019, 10, 7443. https://doi.org/10.4081/pb.2019.7443

AMA Style

Sukardi S, Soeparman S, Argo BD, Irawan YS. Use of Pulsed Electric Fields to Induce Breakage of Glandular Trichome Cells in Leaves of Fresh Patchouli (Pogostemon cablin Benth.): Specific Energy Input Consumption. International Journal of Plant Biology. 2019; 10(1):7443. https://doi.org/10.4081/pb.2019.7443

Chicago/Turabian Style

Sukardi, Sukardi, Sudjito Soeparman, Bambang Dwi Argo, and Yudy Surya Irawan. 2019. "Use of Pulsed Electric Fields to Induce Breakage of Glandular Trichome Cells in Leaves of Fresh Patchouli (Pogostemon cablin Benth.): Specific Energy Input Consumption" International Journal of Plant Biology 10, no. 1: 7443. https://doi.org/10.4081/pb.2019.7443

APA Style

Sukardi, S., Soeparman, S., Argo, B. D., & Irawan, Y. S. (2019). Use of Pulsed Electric Fields to Induce Breakage of Glandular Trichome Cells in Leaves of Fresh Patchouli (Pogostemon cablin Benth.): Specific Energy Input Consumption. International Journal of Plant Biology, 10(1), 7443. https://doi.org/10.4081/pb.2019.7443

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