Extraction of Phytochemicals from Maypole Apple by Subcritical Water

The Maypole apple is a new, promising species of small apples with a prominent flavor and deep red flesh and peel. This study divided Maypole apples into outer flesh, inner flesh, and peel, and used subcritical water at 100–175 °C for 10–30 min to extract various phytochemicals (procyanidin B2 (PB2)...

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Main Authors: Menghsuan Tsai, Li Zhu, Shinya Maeda, Tao Wang, Wahyu Diono, Motonobu Goto, Hideki Kanda
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/11/21/3453
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author Menghsuan Tsai
Li Zhu
Shinya Maeda
Tao Wang
Wahyu Diono
Motonobu Goto
Hideki Kanda
author_facet Menghsuan Tsai
Li Zhu
Shinya Maeda
Tao Wang
Wahyu Diono
Motonobu Goto
Hideki Kanda
author_sort Menghsuan Tsai
collection DOAJ
description The Maypole apple is a new, promising species of small apples with a prominent flavor and deep red flesh and peel. This study divided Maypole apples into outer flesh, inner flesh, and peel, and used subcritical water at 100–175 °C for 10–30 min to extract various phytochemicals (procyanidin B2 (PB2), 5-caffeoylquinic acid (5CQA), and epicatechin). The obtained Maypole apple extracts and extraction residues in this work were analyzed using a SEM, HPLC, FT-IR, and UV-Vis spectrophotometer. Under different subcritical water extraction conditions, this work found the highest extraction rate: to be PB2 from the peel (4.167 mg/mL), 5CQA (2.296 mg/mL) and epicatechin (1.044 mg/mL) from the inner flesh. In addition, this work regressed the quadratic equations of the specific yield through ANOVA and found that temperature is a more significant affecting factor than extraction time. This aspect of the study suggests that phytochemicals could be obtained from the Maypole apple using the new extraction method of subcritical water.
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spelling doaj.art-cf0335fca9014ed09a5eb72960aa5bcb2023-11-24T04:41:04ZengMDPI AGFoods2304-81582022-10-011121345310.3390/foods11213453Extraction of Phytochemicals from Maypole Apple by Subcritical WaterMenghsuan Tsai0Li Zhu1Shinya Maeda2Tao Wang3Wahyu Diono4Motonobu Goto5Hideki Kanda6Department of Materials Process Engineering, Nagoya University, Furocho, Chikusa, Nagoya 464-8603, JapanDepartment of Materials Process Engineering, Nagoya University, Furocho, Chikusa, Nagoya 464-8603, JapanDepartment of Materials Process Engineering, Nagoya University, Furocho, Chikusa, Nagoya 464-8603, JapanDepartment of Materials Process Engineering, Nagoya University, Furocho, Chikusa, Nagoya 464-8603, JapanDepartment of Materials Process Engineering, Nagoya University, Furocho, Chikusa, Nagoya 464-8603, JapanDepartment of Materials Process Engineering, Nagoya University, Furocho, Chikusa, Nagoya 464-8603, JapanDepartment of Materials Process Engineering, Nagoya University, Furocho, Chikusa, Nagoya 464-8603, JapanThe Maypole apple is a new, promising species of small apples with a prominent flavor and deep red flesh and peel. This study divided Maypole apples into outer flesh, inner flesh, and peel, and used subcritical water at 100–175 °C for 10–30 min to extract various phytochemicals (procyanidin B2 (PB2), 5-caffeoylquinic acid (5CQA), and epicatechin). The obtained Maypole apple extracts and extraction residues in this work were analyzed using a SEM, HPLC, FT-IR, and UV-Vis spectrophotometer. Under different subcritical water extraction conditions, this work found the highest extraction rate: to be PB2 from the peel (4.167 mg/mL), 5CQA (2.296 mg/mL) and epicatechin (1.044 mg/mL) from the inner flesh. In addition, this work regressed the quadratic equations of the specific yield through ANOVA and found that temperature is a more significant affecting factor than extraction time. This aspect of the study suggests that phytochemicals could be obtained from the Maypole apple using the new extraction method of subcritical water.https://www.mdpi.com/2304-8158/11/21/3453Maypole applesubcritical waterprocyanidin B25-caffeoylquinic acidepicatechin
spellingShingle Menghsuan Tsai
Li Zhu
Shinya Maeda
Tao Wang
Wahyu Diono
Motonobu Goto
Hideki Kanda
Extraction of Phytochemicals from Maypole Apple by Subcritical Water
Foods
Maypole apple
subcritical water
procyanidin B2
5-caffeoylquinic acid
epicatechin
title Extraction of Phytochemicals from Maypole Apple by Subcritical Water
title_full Extraction of Phytochemicals from Maypole Apple by Subcritical Water
title_fullStr Extraction of Phytochemicals from Maypole Apple by Subcritical Water
title_full_unstemmed Extraction of Phytochemicals from Maypole Apple by Subcritical Water
title_short Extraction of Phytochemicals from Maypole Apple by Subcritical Water
title_sort extraction of phytochemicals from maypole apple by subcritical water
topic Maypole apple
subcritical water
procyanidin B2
5-caffeoylquinic acid
epicatechin
url https://www.mdpi.com/2304-8158/11/21/3453
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