Abstract
This research investigated the technical feasibility of metal-organic frameworks (MOFs) as novel delivery systems for encapsulation and controlled release of volatile allyl isothiocyanate (AITC) molecules. We hypothesized that water vapor molecules could act as an external stimulus to trigger the release of AITC molecules encapsulated in MOFs. To test this hypothesis, three MOFs—HKUST-1, MOF-74(Zn), and RPM6-Zn—were selected based on their structural properties and AITC molecular characteristics. Results from adsorption-desorption and GC headspace analyses showed that these MOFs could encapsulate and retain AITC molecules within their pores under low (30–35%) relative humidity (RH) conditions. In contrast, the release of AITC molecules from all these MOFs was triggered under high RH (95–100%) conditions. These findings along with results from SEM, TEM, and XRPD studies support our hypothesis that water vapors could trigger the AITC release from these MOFs, indicating that development of the AITC-MOFs delivering system is technically feasible.
| Original language | English |
|---|---|
| Pages (from-to) | 926-935 |
| Number of pages | 10 |
| Journal | Food Chemistry |
| Volume | 221 |
| DOIs | |
| Publication status | Published - Apr 15 2017 |
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Keywords
- Allyl isothiocyanate
- Antimicrobial food packaging
- Controlled release
- Encapsulation
- Metal-organic framework (MOF)
- Moisture-trigger
- Natural food preservative
ASJC Scopus subject areas
- Analytical Chemistry
- Food Science
Cite this
Innovative application of metal-organic frameworks for encapsulation and controlled release of allyl isothiocyanate. / Lashkari, Elham; Wang, Hao; Liu, Linshu; Li, Jing; Yam, Kit.
In: Food Chemistry, Vol. 221, 15.04.2017, p. 926-935.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Innovative application of metal-organic frameworks for encapsulation and controlled release of allyl isothiocyanate
AU - Lashkari, Elham
AU - Wang, Hao
AU - Liu, Linshu
AU - Li, Jing
AU - Yam, Kit
PY - 2017/4/15
Y1 - 2017/4/15
N2 - This research investigated the technical feasibility of metal-organic frameworks (MOFs) as novel delivery systems for encapsulation and controlled release of volatile allyl isothiocyanate (AITC) molecules. We hypothesized that water vapor molecules could act as an external stimulus to trigger the release of AITC molecules encapsulated in MOFs. To test this hypothesis, three MOFs—HKUST-1, MOF-74(Zn), and RPM6-Zn—were selected based on their structural properties and AITC molecular characteristics. Results from adsorption-desorption and GC headspace analyses showed that these MOFs could encapsulate and retain AITC molecules within their pores under low (30–35%) relative humidity (RH) conditions. In contrast, the release of AITC molecules from all these MOFs was triggered under high RH (95–100%) conditions. These findings along with results from SEM, TEM, and XRPD studies support our hypothesis that water vapors could trigger the AITC release from these MOFs, indicating that development of the AITC-MOFs delivering system is technically feasible.
AB - This research investigated the technical feasibility of metal-organic frameworks (MOFs) as novel delivery systems for encapsulation and controlled release of volatile allyl isothiocyanate (AITC) molecules. We hypothesized that water vapor molecules could act as an external stimulus to trigger the release of AITC molecules encapsulated in MOFs. To test this hypothesis, three MOFs—HKUST-1, MOF-74(Zn), and RPM6-Zn—were selected based on their structural properties and AITC molecular characteristics. Results from adsorption-desorption and GC headspace analyses showed that these MOFs could encapsulate and retain AITC molecules within their pores under low (30–35%) relative humidity (RH) conditions. In contrast, the release of AITC molecules from all these MOFs was triggered under high RH (95–100%) conditions. These findings along with results from SEM, TEM, and XRPD studies support our hypothesis that water vapors could trigger the AITC release from these MOFs, indicating that development of the AITC-MOFs delivering system is technically feasible.
KW - Allyl isothiocyanate
KW - Antimicrobial food packaging
KW - Controlled release
KW - Encapsulation
KW - Metal-organic framework (MOF)
KW - Moisture-trigger
KW - Natural food preservative
UR - http://www.scopus.com/inward/record.url?scp=85006745403&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85006745403&partnerID=8YFLogxK
U2 - 10.1016/j.foodchem.2016.11.072
DO - 10.1016/j.foodchem.2016.11.072
M3 - Article
VL - 221
SP - 926
EP - 935
JO - Food Chemistry
JF - Food Chemistry
SN - 0308-8146
ER -