Encapsulation of Betalains Extracted from Red Dragon Fruit Peels by Freeze-drying using Microcrystalline Cellulose and Dragon Fruit Peel Pectin as Wall Materials

Red dragon fruit (Hylocereus polyrhizus) has good potential to be processed into many kinds of food products. The processing of dragon fruit always discarded large volumes of peel waste. The residual peel of red dragon fruit is rich of betalains and pectin, which are alternative food additive source...

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Main Authors: Uyen P. N. Tran, Trung Dang-Bao, Phung Thi Kim Le, Uyen D. H. Huynh, Thanh T. H. Nguyen, Tan M. Le
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2022-12-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/12940
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author Uyen P. N. Tran
Trung Dang-Bao
Phung Thi Kim Le
Uyen D. H. Huynh
Thanh T. H. Nguyen
Tan M. Le
author_facet Uyen P. N. Tran
Trung Dang-Bao
Phung Thi Kim Le
Uyen D. H. Huynh
Thanh T. H. Nguyen
Tan M. Le
author_sort Uyen P. N. Tran
collection DOAJ
description Red dragon fruit (Hylocereus polyrhizus) has good potential to be processed into many kinds of food products. The processing of dragon fruit always discarded large volumes of peel waste. The residual peel of red dragon fruit is rich of betalains and pectin, which are alternative food additive sources. This study utilized red dragon fruit peels to produce betalains and pectin. Because betalain pigment is unstable in processing and storage, it was encapsulated in carbohydrate matrices of pectin (recovered from red dragon fruit peel - DFP) and microcrystalline cellulose (MCC). An appropriate freeze-drying procedure was employed to form pigment powder with 60 to 93 % encapsulation yield. The stability of the encapsulated betalains was investigated under various conditions such as pH, water activity, temperatures, and light after 30-day storage. Betalains encapsulated in a combination of MCC and DFP showed stability improvement compared to non-encapsulated betalains, which is potentially beneficial in food processing.
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spelling doaj.art-0f1782a0c9a34d0a8e0f7c2d606671922022-12-22T04:23:26ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162022-12-019710.3303/CET2297006Encapsulation of Betalains Extracted from Red Dragon Fruit Peels by Freeze-drying using Microcrystalline Cellulose and Dragon Fruit Peel Pectin as Wall MaterialsUyen P. N. TranTrung Dang-BaoPhung Thi Kim LeUyen D. H. HuynhThanh T. H. NguyenTan M. LeRed dragon fruit (Hylocereus polyrhizus) has good potential to be processed into many kinds of food products. The processing of dragon fruit always discarded large volumes of peel waste. The residual peel of red dragon fruit is rich of betalains and pectin, which are alternative food additive sources. This study utilized red dragon fruit peels to produce betalains and pectin. Because betalain pigment is unstable in processing and storage, it was encapsulated in carbohydrate matrices of pectin (recovered from red dragon fruit peel - DFP) and microcrystalline cellulose (MCC). An appropriate freeze-drying procedure was employed to form pigment powder with 60 to 93 % encapsulation yield. The stability of the encapsulated betalains was investigated under various conditions such as pH, water activity, temperatures, and light after 30-day storage. Betalains encapsulated in a combination of MCC and DFP showed stability improvement compared to non-encapsulated betalains, which is potentially beneficial in food processing.https://www.cetjournal.it/index.php/cet/article/view/12940
spellingShingle Uyen P. N. Tran
Trung Dang-Bao
Phung Thi Kim Le
Uyen D. H. Huynh
Thanh T. H. Nguyen
Tan M. Le
Encapsulation of Betalains Extracted from Red Dragon Fruit Peels by Freeze-drying using Microcrystalline Cellulose and Dragon Fruit Peel Pectin as Wall Materials
Chemical Engineering Transactions
title Encapsulation of Betalains Extracted from Red Dragon Fruit Peels by Freeze-drying using Microcrystalline Cellulose and Dragon Fruit Peel Pectin as Wall Materials
title_full Encapsulation of Betalains Extracted from Red Dragon Fruit Peels by Freeze-drying using Microcrystalline Cellulose and Dragon Fruit Peel Pectin as Wall Materials
title_fullStr Encapsulation of Betalains Extracted from Red Dragon Fruit Peels by Freeze-drying using Microcrystalline Cellulose and Dragon Fruit Peel Pectin as Wall Materials
title_full_unstemmed Encapsulation of Betalains Extracted from Red Dragon Fruit Peels by Freeze-drying using Microcrystalline Cellulose and Dragon Fruit Peel Pectin as Wall Materials
title_short Encapsulation of Betalains Extracted from Red Dragon Fruit Peels by Freeze-drying using Microcrystalline Cellulose and Dragon Fruit Peel Pectin as Wall Materials
title_sort encapsulation of betalains extracted from red dragon fruit peels by freeze drying using microcrystalline cellulose and dragon fruit peel pectin as wall materials
url https://www.cetjournal.it/index.php/cet/article/view/12940
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