Trends in Food Science & Technology,
Journal Year:
2023,
Volume and Issue:
134, P. 232 - 246
Published: March 6, 2023
Recently,
food
quality
and
safety
have
emerged
as
significant
global
issues.
The
rapid
detection
of
contaminants
spoilage
markers
has
attracted
increasing
concerns.
grouping
illuminants
based
on
the
principle
aggregation-induced
emission
(AIE)
mechanism
for
designing
monitoring
analysis
sensing
platforms
can
address
shortcomings
conventional
fluorophore
aggregation-caused
quenching
(ACQ),
offering
benefits
superb
photoluminescence
properties
trace-level
accuracy.
With
demand
real-time
in
industry,
such
a
robust
platform
is
becoming
progressively
important.
In
current
review,
luminescence
mechanisms
structure
design
AIE
are
first
introduced.
elucidated,
including
noncovalent
interaction,
solubility
viscosity
change,
specific
recognition,
photophysical
quenching/dequenching
processes.
Moreover,
this
review
comprehensively
summarizes
latest
representative
applications
foodborne
pathogens,
environmental
pollutants,
biotoxins,
agrochemicals,
illegal
additives,
markers.
Lastly,
outlook
challenges
discussed.
emerging
exhibits
outstanding
advantages
rapidity,
high
sensitivity,
good
accuracy
analytes
detection,
well
predestined
capabilities
constructing
portable
solid-state
sensors.
combination
with
other
technologies,
immunosensing
techniques,
freshness
labels,
smartphone
platforms,
further
facilitate
development
commercialized
especially
portable,
real-time,
on-site
applications.
From
typical
organic
molecules
to
nature-derived
nanomaterials,
discovery,
synthesis
different
types
substances
under
active
exploration
provide
better
solutions
inspection.
Food Chemistry,
Journal Year:
2023,
Volume and Issue:
418, P. 135943 - 135943
Published: March 14, 2023
Moisture
content
(MC)
is
a
critical
quality
indicator
for
food
drying
processing,
however
achieving
in-situ
non-destructive
analyses
of
dynamic
MC
products
during
processing
still
challenge.
This
study
developed
an
indirect
measurement
method
using
Terahertz
time-domain
spectroscopy
(THz-TDS)
real-time
prediction
foods
microwave
vacuum
(MVD).
During
MVD,
THz-TDS
continuously
sense
the
moisture
vapour
from
desiccator
through
polyethene
air
hose.
The
obtained
THz
spectra
were
processed
to
calibrate
loss
models
support
vector
regression,
Gaussian
process
regression
and
ensemble
regression.
Then
was
calculated
results.
best
results
beef
carrot
slices
achieved
R2
0.995,
RMSE
0.0162,
RDP
22.
system
provides
novel
kinetics
research
MVD
expands
applicability
technique
in
industry.
Trends in Food Science & Technology,
Journal Year:
2023,
Volume and Issue:
138, P. 726 - 737
Published: July 8, 2023
Hyperspectral
imaging
(HSI)
technology
fusing
spectroscopic
and
has
been
proposed
to
achieve
rapid
non-destructive
inspection
of
food
quality.
In
order
make
full
use
the
hyperspectral
data
containing
rich
information,
it
is
needed
develop
effective
efficient
analysis
methods
mine
new
information
from
data.
The
feature
construction
(FC)
method,
as
a
method
extracting
construct
features,
applied
more
representative
informative
features
for
detection
review
focuses
on
different
dimensional
including
zero-dimensional
(0-D)
one-dimensional
(1-D)
two-dimensional
(2-D)
three-dimensional
(3-D)
in
detail
presents
their
principles
implementation
steps.
review,
applications
HSI
combined
with
FC
quality
are
also
discussed,
challenges
future
work
presented.
current
expected
provide
some
guidance
researchers
methods,
which
should
further
encourage
inspection.
Despite
combining
technology,
encapsulation
miniaturised
instruments
an
inevitable
trend
development.
Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy,
Journal Year:
2024,
Volume and Issue:
311, P. 124015 - 124015
Published: Feb. 10, 2024
Rice
grains
are
often
infected
by
Sitophilus
oryzae
due
to
improper
storage,
resulting
in
quality
and
quantity
losses.
The
efficacy
of
terahertz
time-domain
spectroscopy
(THz-TDS)
technology
detecting
at
different
stages
infestation
stored
rice
was
employed
the
current
research.
Terahertz
(THz)
spectra
for
infested
growth
were
acquired.
Then,
convolutional
denoising
autoencoder
(CDAE)
used
reconstruct
THz
reduce
noise-to-signal
ratio.
Finally,
a
random
forest
classification
(RFC)
model
developed
identify
levels.
Results
showed
that
RFC
based
on
reconstructed
second-order
derivative
spectrum
with
an
accuracy
84.78%,
specificity
86.75%,
sensitivity
86.36%
F1-score
85.87%
performed
better
than
original
first-order
89.13%,
91.38%,
88.18%
89.16%.
In
addition,
layers
inside
CDAE
visualized
using
feature
maps
explain
improvement
results,
illustrating
can
eliminate
noise
spectral
data.
Overall,
provided
novel
method
effective
detection
grains.
Journal of Food Engineering,
Journal Year:
2024,
Volume and Issue:
381, P. 112183 - 112183
Published: June 8, 2024
Fluidized
bed
drying
(FBD),
as
a
novel
dehydration
method,
has
been
widely
applied
in
various
heat-sensitive
high-value
food
products,
which
the
pulsed
fluidized
(PFBD)
technique
addresses
ineffective
limitation
of
traditional
FBD
when
dealing
with
cohesive
products.
However,
achieving
situ
real-time
monitoring
dynamic
product
moisture
content
(MC)
change
during
both
and
PFBD
without
sampling
is
still
challenging.
This
paper
presents
an
innovative
integration
whisk-broom
terahertz
time-domain
spectroscopy
(THz-TDS)
imaging
system
dryer,
facilitating
situ,
MC
reduction
products
process
pausing
for
sampling.
The
reliability,
robustness
established
prediction
models
were
tested
by
peppercorn
sweetcorn
under
settings,
including
different
temperatures,
flow
patterns,
durations.
Implementing
convolutional
neural
networks
(CNN)
long
short-term
memory
(LSTM)
correlating
image
data
reference
datasets
this
research
provided
reliable
results
mixture
dataset
from
drying.
successful
application
combined
sensing
analytical
method
promising
approach
enhancing
industrial
processing
control
expands
utility
THz-TDS
agriculture
fields.
Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy,
Journal Year:
2024,
Volume and Issue:
316, P. 124336 - 124336
Published: April 23, 2024
For
addressing
the
challenges
of
strong
affinity
SERS
substrate
to
organophosphorus
pesticides
(OPs),
herein,
a
rapid
water-assisted
layer-by-layer
heteronuclear
growth
method
was
investigated
grow
uniform
UiO-66
shell
with
controllable
thickness
outside
magnetic
core
and
provide
abundant
defect
sites
for
OPs
adsorption.
By
further
assembling
tailored
Au@Ag,
highly
sensitive
Fe
Journal of Food Measurement & Characterization,
Journal Year:
2023,
Volume and Issue:
17(4), P. 3616 - 3624
Published: March 23, 2023
Abstract
The
Terahertz
(THz)
time
domain
computed
tomography
(CT)
system
was
used
for
evaluating
kernel
weight
and
plumpness
of
sunflower
seed
in
present
study.
Specifically,
a
series
THz
projections
the
on
rotation
stage
were
captured
by
customized
transmission
mode
imaging
from
different
angles.
These
preprocessed
then
modelled
inverse
Radon
transform
to
reconstruct
three-dimensional
(3D)
seed.
shapes
structures
seeds
reconstructed
volumetric
images
well
presented.
volume
ratio
(obtained
CT
imaging)
area
RGB
whole
calculated
as
3D
2D
plumpness,
respectively.
comparison
between
these
two
indicating
that
our
can
better
describe
structure.
Correlation
coefficient
(R)
sum
intensity
values
voxels
weights
is
0.89
at
1.2
THz.
This
first
application
applying
systems
agri-food
research,
results
indicate
be
useful
nondestructive
tool
intact
In
addition,
there
potential
extend
analysis
other
sample
types.
