Active packaging: controlled release of microbial agents from packaging materials

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HAL Id: hal-02795370

https://hal.inrae.fr/hal-02795370

Submitted on 5 Jun 2020

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Active packaging: controlled release of microbial agents

from packaging materials

Mia Kurek, Nathalie Gontard, Valérie Guillard

To cite this version:

Mia Kurek, Nathalie Gontard, Valérie Guillard. Active packaging: controlled release of microbial agents from packaging materials. EcobioCap Final Meeting, Feb 2015, Montpellier, France. �hal-02795370�

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A

CTIVE PACKAGING

: C

ONTROLLED

RELEASE OF MICROBIAL AGENTS FROM

PACKAGING MATERIALS

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NextGenPack

Next generation of advanced active and intelligent

bio-based packaging for food

ACTIVE

ANTIMICROBIAL

PACKAGING

How to create an optimised AP?

Controlled

release

technology

Microbial

growth kinetics

AC mass

transfer rate

MO growth

rate

»

C

_AC

> C

_critical

 activity

AC mass

transfer rate

«

MO growth

_rate

C

_AC

< C

_critical

MO will grow instantly,

before AC is released

(4)

Why AITC?

strong AM activity

in vapour state

Allyl isothiocyanate

Active NGP film design

3 BioPE or PLA film

+

Active volatile compound

Active BioPE or PLA film

HS

T, RH

shelflife

MIC < C

_AITC

< sensory treshold

t

₀

Environment T, RH

Why β cyclodextrine?

- Protection against thermal degradation

- To avoid premature release

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STEPS



To model H

₂

O transfer into active film



To model the release of AITC from β-CD as function of RH



To model AITC transfer through active film



To couple mass transfers & AITC release kinetic to predict AITC release

into HS

4 Environment

H

₂

O flow

D

_H2O

D

_AITCfree

e=t

hic

kness

AITC flow

H

₂

O flow

HS

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0

5

10

15

20

0

1

2

3

4

5

6

7

8 Time (days)

A

IT

C

i

n

h

e

a

d

s

p

a

c

e

(

m

g

d

m

-3

)

OUTPUTS:

5 5% βCD-AITC

By changing:

Example:

 allows calculation of active complex needed for the optimisation

of packaging design

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0

5

10

15

20

0

1

2

3

4

5

6

7

8 Time (days)

A

IT

C

in

h

ea

d

sp

ac

e

(m

g

d

m

-3

)

MIC < 1 mg/dm

3 OUTPUTS:

6 1% βCD-AITC

By changing:

Example:

 allows calculation of active complex needed for the optimisation

of packaging design

 evolution of AITC in the HS allows to determine the activity profile  C

_aitc

> MIC

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0

5

10

15

20

0

1

2

3

4

5

6

7

8 Time (days)

A

IT

C

i

n

h

e

a

d

s

p

a

c

e

(

m

g

d

m

-3

)

OUTPUTS:

7 By changing:

Example:

 allows calculation of active complex needed for the optimisation

of packaging design

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0

5

10

15

20

0

1

2

3

4

5

6

7

8 Time (days)

A

IT

C

in

h

ea

d

sp

ac

e

(m

g

d

m

-3

)

V

Vx2

Vx4

OUTPUTS:

8 By changing:

Example:

 allows calculation of active complex needed for the optimisation

of packaging design

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0

5

10

15

20

0

1

2

3

4

5

6

7

8 Time (days)

A

IT

C

in

h

ea

d

sp

ac

e

(m

g

d

m

-3

)

1

0.75

0.5 OUTPUTS:

9

0 By changing:

Example:

 allows calculation of active complex needed for the optimisation

of packaging design

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10 CONCLUSIONS

1) Developed mathematical model succesfully describes controlled

release of AC in the HS in order to reach MIC

2) The rate of release depends on the moisture content of the system

3) H

₂

O and AC distribution profiles can help in understanding the

release kinetics

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