Biological Trace Element Research,
Год журнала:
2023,
Номер
202(1), С. 387 - 396
Опубликована: Май 2, 2023
Abstract
Tea
is
the
world’s
most
common
drink
after
water,
and
annual
sales
exceed
$43
billion,
of
which
more
than
$11
billion
green
tea
(
Camellia
sinensis
(L.)).
Increasing
evidence
continues
to
show
that
consumption
its
ingredients
have
a
variety
potential
health
benefits.
The
aim
study
was
control
assess
toxicological
risk
(TRA)
three
heavy
metals
(As,
Pb,
Cd)
in
infusions
n
=
12)
from
Polish
markets.
We
applied
method
inductive
coupled
plasma
mass
spectrometry
(ICP-MS)
determine
selected
metal
designed
specific
assessment
with
crucial
tiers.
first
tier
our
strategy
elements
investigated
(heavy
impurities,
µg/L).
second
step
estimate
weekly
intake
(µg/week)
based
on
consumption.
third
per
weight
(µg/L/week/bw),
average
infusion
adult
compared
provisional
(PTWI)
established
by
FAO/WHO
Joint
Food
Additives
Expert
Committee
(JECFA).
levels
occur
at
different
all
infusions.
profile
indicated
As
(0.0721–10.585
µg/L),
Pb
(0.386–1.695
Cd
(0.126–0.346
µg/L)
were
present
samples.
Basic
analysis
general
content
shows
(average
0.325
level
similar
0.214
Surprisingly,
0.891
approximately
2.75–4
times
higher
Cd,
respectively.
application
proposed
safety
methodology
(three
tiers)
provides
satisfactory
results
for
regulatory
purposes.
evaluation
products
analysed
samples
(infusions)
showed
there
no
hazards
consumers
due
exposure.
drinking
markets,
amount
doses
does
not
represent
any
risks
consumers.
Scientific Reports,
Год журнала:
2022,
Номер
12(1)
Опубликована: Янв. 26, 2022
Abstract
The
study
aims
to
solve
the
problems
of
limited
capacity
and
difficult
recovery
lignite
adsort
Cu
2+
,
Zn
Pb
in
acid
mine
wastewater
(AMD).
Magnetically
modified
(MML)
was
prepared
by
chemical
co-precipitation
method.
Static
beaker
experiments
dynamic
continuous
column
were
set
up
explore
adsorption
properties
MML.
Lignite
MML
before
after
heavy
metal
ions
characterized
scanning
electron
microscopy
(SEM),
X-ray
diffraction
(XRD)
Fourier
transform
infrared
spectrometer
(FTIR).
Meanwhile,
mechanisms
revealed
combining
isotherm
model
kinetics
model.
results
showed
that
pH,
adsorbent
dosage,
temperature,
initial
concentration
ions,
contact
time
had
an
influence
on
MML,
processes
more
line
with
Langmuir
jointly
controlled
multiple
stages.
obeyed
Quasi
first-order
kinetic
model,
while
chemisorption
second-order
negative
Δ
G
positive
H
indicated
spontaneous
endothermic
nature
reaction,
exothermic
reaction.
average
removal
rates
78.00,
76.97
78.65%,
respectively,
those
82.83,
81.57
83.50%,
respectively.
Compared
lignite,
effect
better.
As
shown
SEM,
XRD
FTIR
tests,
Fe
3
O
4
successfully
loaded
surface
during
magnetic
modification,
which
made
morphology
coarser.
removed
from
AMD
different
forms.
In
addition,
process
is
related
O–H
stretching
vibration
carboxylic
Fe–O
particles.
BioMed Research International,
Год журнала:
2023,
Номер
2023(1)
Опубликована: Янв. 1, 2023
The
increasing
public
concern
over
the
negative
impacts
of
chemical
fertilizers
and
pesticides
on
food
security
sustainability
has
led
to
exploring
innovative
methods
that
offer
both
environmental
agricultural
benefits.
One
such
approach
is
using
plant‐growth‐promoting
bioinoculants
involve
bacteria,
fungi,
algae.
These
living
microorganisms
are
applied
soil,
seeds,
or
plant
surfaces
can
enhance
development
by
nutrient
availability
defense
against
pathogens.
However,
application
biofertilizers
in
field
faced
many
challenges
required
conjunction
with
delivering
approaches.
Nanotechnology
gained
significant
attention
recent
years
due
its
numerous
applications
various
fields,
as
medicine,
drug
development,
catalysis,
energy,
materials.
Nanoparticles
small
sizes
large
surface
areas
(1‐100
nm)
have
potential
functions.
In
sustainable
agriculture,
nanochemicals
shown
promise
agents
for
growth,
fertilizers,
pesticides.
use
nanomaterials
being
considered
a
solution
control
pests,
including
insects,
weeds.
industry,
nanoparticles
used
antimicrobial
packaging,
silver
particularly
interesting.
(Ag,
Fe,
Cu,
Si,
Al,
Zn,
ZnO,
TiO
2
,
CeO
Al
O
3
carbon
nanotubes)
been
reported
negatively
affect
growth.
This
review
focuses
effects
beneficial
bacteria
their
ability
promote
Implementing
novel
strategies
biofertilizers,
could
be
promising
achieve
production
while
reducing
impacts.
