Food Control,
Journal Year:
2024,
Volume and Issue:
168, P. 110841 - 110841
Published: Sept. 3, 2024
The
chemical
compound
2-acetyl-1-pyrroline
(2-AP)
is
a
major
contributor
to
the
fragrance
of
rice.
This
report
presents
first
efforts
towards
determining
quantities
2-AP
in
rice
by
grating-based
visible–near-infrared
reflectance
spectroscopy
using
diverse
set
varieties.
Calibration
models
generated
preprocessing
treatments
Design
Experiment
(DoE)
and
'one-variable-at-atime'
(OVAT)
methods
were
compared
optimized.
A
modified
partial
least
squares
model
with
"2,
3,
1,
1"/
SNV
174
variables
yielded
coefficient
determination
for
calibration
values
0.978.
results
showed
that
DoE-based
selection
could
efficiently
accurately
optimize
models,
advantages
over
OVAT.
findings
this
study
provide
high-throughput
screening
technology
high-precision
quality
breeding,
monitoring
control
industry.
method
demonstrated
here
also
has
potential
application
many
other
disciplines,
including
identification
plant
fragrances
cereal
products.
Food Chemistry X,
Journal Year:
2025,
Volume and Issue:
25, P. 102179 - 102179
Published: Jan. 1, 2025
Aroma
is
a
key
factor
in
milk
powder
quality
evaluation
and
consumer
choice.
However,
research
has
mostly
focused
on
processing
effects,
with
little
flavor
differences
among
powders.
This
study
analysed
identified
the
characteristics
of
five
common
types
powders
China,
including
yak
powder,
donkey
camel
goat
cow
using
Headspace-Gas
Chromatography-Ion
Mobility
Spectrometry
(HS-GC-IMS),
Headspace
Solid-Phase
Microextraction-Gas
Chromatography-Mass
(HS-SPME-GC-MS),
multivariate
statistical
analysis.
Results
55
86
volatile
compounds
via
HS-GC-IMS
HS-SPME-GC-MS,
respectively,
revealing
significant
between
PCA,
OPLS-DA,
PLS-DA,
heatmaps
further
distinguished
sources.
Based
VIP
values,
27
24
were
identified.
These
results
underscored
potential
utilizing
these
combined
techniques
for
quick
analysis
detecting
adulteration
powder.
Foods,
Journal Year:
2023,
Volume and Issue:
12(16), P. 3052 - 3052
Published: Aug. 15, 2023
With
the
changes
of
lifestyles
and
rapid
growth
prepared
food
industry,
fried
rice
that
meets
consumption
patterns
contemporary
young
people
has
become
popular
in
China.
Although
is
convenient
nutritious,
it
following
concerns
supply
chain:
(1)
susceptible
to
contamination
by
microorganisms;
(2)
rich
starch
prone
stall;
(3)
vegetables
ingredients
have
issues
water
loss
discoloration,
meat
substances
are
vulnerable
oxidation
deterioration.
As
different
used
rice,
their
processing
quality
monitoring
techniques
also
different.
This
paper
reviews
key
factors
cause
advantages
limitations
technologies
processes.
The
for
include
irradiation,
high-voltage
electric
field,
microwave,
radio
frequency,
ohmic
heating,
while
Raman
spectral
imaging,
near-infrared
low-field
nuclear
magnetic
resonance
technology.
These
will
serve
as
foundation
enhancing
safety
essential
further
development
emerging
market.
LWT,
Journal Year:
2023,
Volume and Issue:
189, P. 115437 - 115437
Published: Nov. 1, 2023
Rapid
and
accurate
testing
of
wheat
flour
for
illegal
additives
is
important
maintaining
food
safety.
In
this
study,
a
combination
NIR
spectroscopy
partial
least
squares
regression
(PLSR)
was
used
to
predict
the
levels
two
(talc
powder
benzoyl
peroxide)
in
flour.
Different
critical
wavelength
selection
algorithms
(competitive
adaptive
reweighted
sampling,
CARS;
random
frog,
RF;
Monte
Carlo
uninformative
variable
elimination,
MCUVE;
CARS-RF;
CARS-MCUVE)
were
filter
key
wavelengths.
our
R2P
talc
peroxide
full-wavelength
PLSR
model
0.995
0.964,
respectively.
The
CARS-RF
RF
screened
10
effective
containing
talc,
RPD
using
14.796,
peroxide,
0.923
3.697,
had
great
potential
accurately
additives.
