Harvest Age Effect on Phytochemical Content of White and Black Glutinous Rice Cultivars

Tamprasit, Kawintra; Weerapreeyakul, Natthida; Sutthanut, Khaetthareeya; Thukhammee, Wipawee; Wattanathorn, Jintanaporn

doi:10.3390/molecules24244432

Submit to this Journal Review for this Journal Edit a Special Issue

Article Menu

...

Open AccessArticle

Harvest Age Effect on Phytochemical Content of White and Black Glutinous Rice Cultivars

Kawintra Tamprasit

¹,

Natthida Weerapreeyakul

^2,3,*

Khaetthareeya Sutthanut

^2,3,

Wipawee Thukhammee

^3,4 and

Jintanaporn Wattanathorn

^3,4

Graduate School (in the program of Aesthetic Sciences and Health), Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand

Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand

Human High Performance and Health Promotion (HHP&HP) Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand

⁴

Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand

Author to whom correspondence should be addressed.

Molecules 2019, 24(24), 4432; https://doi.org/10.3390/molecules24244432

Received: 31 October 2019 / Revised: 28 November 2019 / Accepted: 29 November 2019 / Published: 4 December 2019

(This article belongs to the Special Issue Selected Papers from the Joint Symposia of MESMAP-5 & ISPBS-5)

View Full-Text Download PDF

Browse Figures

Citation Export

Abstract

Many studies have been conducted on the bioactive compounds of rice seeds, however, there is limited information on the bioactive compounds of rice sprouts. This study focused on the age effect on the phytochemical content of white and black glutinous rice sprouts harvested between 5 and 25 days old. We assessed yield, total phenolic content, total flavonoid content, total anthocyanin content, total chlorophyll content, and proximate analysis. HPLC results identified protocatechuic acid, vanillic acid, and rutin in the sprouts of both cultivars, ranging between 0.56–1.58, 0.65–7.69, and 0.47–1.68 mg/g extract, respectively. The amount of bioactive compounds and proximate compositions in black glutinous rice were generally higher than white glutinous rice in an age-dependent manner (p < 0.05). At 5–7 days, black glutinous rice contained the highest total anthocyanin content, while white glutinous rice contained the highest total phenolic content and total flavonoid content (p < 0.05). High total chlorophyll content was initially detected in white glutinous rice at a younger age than black glutinous rice (p < 0.05), while total chlorophyll content in both cultivars was not significantly different. Our study confirms the presence of phytoconstituents in the rice sprouts of white and black glutinous rice and their potential as functional foods and for being further development as natural health products. View Full-Text

Keywords: rice; rice sprout; white glutinous rice; black glutinous rice

▼ Show Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

Supplementary Material

Supplementary File 1:
PDF-Document (PDF, 668 KiB)

Share and Cite

MDPI and ACS Style

Tamprasit, K.; Weerapreeyakul, N.; Sutthanut, K.; Thukhammee, W.; Wattanathorn, J. Harvest Age Effect on Phytochemical Content of White and Black Glutinous Rice Cultivars. Molecules 2019, 24, 4432. https://doi.org/10.3390/molecules24244432

AMA Style

Tamprasit K, Weerapreeyakul N, Sutthanut K, Thukhammee W, Wattanathorn J. Harvest Age Effect on Phytochemical Content of White and Black Glutinous Rice Cultivars. Molecules. 2019; 24(24):4432. https://doi.org/10.3390/molecules24244432

Chicago/Turabian Style

Tamprasit, Kawintra, Natthida Weerapreeyakul, Khaetthareeya Sutthanut, Wipawee Thukhammee, and Jintanaporn Wattanathorn. 2019. "Harvest Age Effect on Phytochemical Content of White and Black Glutinous Rice Cultivars" Molecules 24, no. 24: 4432. https://doi.org/10.3390/molecules24244432

Find Other Styles

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Abstract views Pdf views Html views

Article Menu

Harvest Age Effect on Phytochemical Content of White and Black Glutinous Rice Cultivars

Abstract

Supplementary Material

Share and Cite

Article Metrics

Article Access Statistics

Article Access Map by Country/Region

Further Information

Guidelines

MDPI Initiatives

Follow MDPI