Investigation on the influence of pre-treatments on drying behaviour of broccoli by MRI experiments

X. Jin; R.G.M. van der Sman; E. Gerkema; F.J. Vergeldt; H. van As; G. van Straten; R.M. Boom; A.J.B. van Boxtel

Investigation on the influence of pre-treatments on drying behaviour of broccoli by MRI experiments

X. Jin, R.G.M. van der Sman, E. Gerkema, F.J. Vergeldt, H. van As, G. van Straten, R.M. Boom, A.J.B. van Boxtel

Research output: Contribution to conference › Conference paper › Academic › peer-review

Abstract

Abstract: Magnetic Resonance Imaging (MRI) allows the monitoring of internal moisture content of food products during drying non-destructively. In an experimental set-up with continuous and controlled hot air supply, the internal moisture distribution of broccoli with different pre-treatments are measured during drying. Moisture distribution, drying rate and shrinkage are compared and analyzed quantitatively. MRI results indicated that for fresh broccoli stalks the moisture content in the core of the sample increased after some hours of drying. With pre-treatments as peeling, blanching or freezing the moisture transport barrier in the skin of the broccoli sample was reduced. Shrinkage was uniform for most of the pre-treated samples and the moisture increment in the core did not occur. It was also found that with these pre-treatments progress of drying enhanced significantly. Therefore, from an drying efficiency and economic point of view, pre-treatments prior to drying offer important opportunities. Keywords: MRI, hot air drying, broccoli stalk, increased moisture content, pre-treatments

Original language	English
Publication status	Published - 2011
Event	7th Asia-Pacific Drying Conference, Tianjin, China - Duration: 18 Sep 2011 → 20 Sep 2011

Conference

Conference	7th Asia-Pacific Drying Conference, Tianjin, China
Period	18/09/11 → 20/09/11

Access to Document

https://edepot.wur.nl/184141

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@conference{f6cea979184343d4988c92908b06a274,

title = "Investigation on the influence of pre-treatments on drying behaviour of broccoli by MRI experiments",

abstract = "Abstract: Magnetic Resonance Imaging (MRI) allows the monitoring of internal moisture content of food products during drying non-destructively. In an experimental set-up with continuous and controlled hot air supply, the internal moisture distribution of broccoli with different pre-treatments are measured during drying. Moisture distribution, drying rate and shrinkage are compared and analyzed quantitatively. MRI results indicated that for fresh broccoli stalks the moisture content in the core of the sample increased after some hours of drying. With pre-treatments as peeling, blanching or freezing the moisture transport barrier in the skin of the broccoli sample was reduced. Shrinkage was uniform for most of the pre-treated samples and the moisture increment in the core did not occur. It was also found that with these pre-treatments progress of drying enhanced significantly. Therefore, from an drying efficiency and economic point of view, pre-treatments prior to drying offer important opportunities. Keywords: MRI, hot air drying, broccoli stalk, increased moisture content, pre-treatments",

author = "X. Jin and {van der Sman}, R.G.M. and E. Gerkema and F.J. Vergeldt and {van As}, H. and {van Straten}, G. and R.M. Boom and {van Boxtel}, A.J.B.",

year = "2011",

language = "English",

note = "7th Asia-Pacific Drying Conference, Tianjin, China ; Conference date: 18-09-2011 Through 20-09-2011",

}

Investigation on the influence of pre-treatments on drying behaviour of broccoli by MRI experiments. / Jin, X.; van der Sman, R.G.M.; Gerkema, E.; Vergeldt, F.J.; van As, H.; van Straten, G.; Boom, R.M.; van Boxtel, A.J.B.

2011. Paper presented at 7th Asia-Pacific Drying Conference, Tianjin, China, .

Research output: Contribution to conference › Conference paper › Academic › peer-review

TY - CONF

T1 - Investigation on the influence of pre-treatments on drying behaviour of broccoli by MRI experiments

AU - Jin, X.

AU - van der Sman, R.G.M.

AU - Gerkema, E.

AU - Vergeldt, F.J.

AU - van As, H.

AU - van Straten, G.

AU - Boom, R.M.

AU - van Boxtel, A.J.B.

PY - 2011

Y1 - 2011

N2 - Abstract: Magnetic Resonance Imaging (MRI) allows the monitoring of internal moisture content of food products during drying non-destructively. In an experimental set-up with continuous and controlled hot air supply, the internal moisture distribution of broccoli with different pre-treatments are measured during drying. Moisture distribution, drying rate and shrinkage are compared and analyzed quantitatively. MRI results indicated that for fresh broccoli stalks the moisture content in the core of the sample increased after some hours of drying. With pre-treatments as peeling, blanching or freezing the moisture transport barrier in the skin of the broccoli sample was reduced. Shrinkage was uniform for most of the pre-treated samples and the moisture increment in the core did not occur. It was also found that with these pre-treatments progress of drying enhanced significantly. Therefore, from an drying efficiency and economic point of view, pre-treatments prior to drying offer important opportunities. Keywords: MRI, hot air drying, broccoli stalk, increased moisture content, pre-treatments

AB - Abstract: Magnetic Resonance Imaging (MRI) allows the monitoring of internal moisture content of food products during drying non-destructively. In an experimental set-up with continuous and controlled hot air supply, the internal moisture distribution of broccoli with different pre-treatments are measured during drying. Moisture distribution, drying rate and shrinkage are compared and analyzed quantitatively. MRI results indicated that for fresh broccoli stalks the moisture content in the core of the sample increased after some hours of drying. With pre-treatments as peeling, blanching or freezing the moisture transport barrier in the skin of the broccoli sample was reduced. Shrinkage was uniform for most of the pre-treated samples and the moisture increment in the core did not occur. It was also found that with these pre-treatments progress of drying enhanced significantly. Therefore, from an drying efficiency and economic point of view, pre-treatments prior to drying offer important opportunities. Keywords: MRI, hot air drying, broccoli stalk, increased moisture content, pre-treatments

M3 - Conference paper

T2 - 7th Asia-Pacific Drying Conference, Tianjin, China

Y2 - 18 September 2011 through 20 September 2011

ER -