Valorization of food processing waste byproducts for essential oil production and their application in food system
Waste Management Bulletin,
Год журнала:
2025,
Номер
unknown, С. 100200 - 100200
Опубликована: Апрель 1, 2025
Язык: Английский
Anthropogenic Extremely Low Volatility Organics (ELVOCs) Govern the Growth of Molecular Clusters Over the Southern Great Plains During the Springtime
Journal of Geophysical Research Atmospheres,
Год журнала:
2024,
Номер
129(21)
Опубликована: Окт. 29, 2024
Abstract
New
particle
formation
(NPF)
often
drives
cloud
condensation
nuclei
concentrations
and
the
processes
governing
nucleation
of
molecular
clusters
vary
substantially
in
different
regions.
The
growth
these
from
∼2
to
>10
nm
diameters
is
driven
by
availability
extremely
low
volatility
organic
vapors
(ELVOCs).
Although
pathways
ELVOC
oxidation
biogenic
terpenes
are
better
understood,
mechanistic
for
anthropogenic
organics
less
well
understood.
We
integrate
measurements
detailed
regional
model
simulations
understand
NPF
secondary
aerosol
at
Southern
Great
Plain
(SGP)
observatory
Oklahoma
compare
with
a
site
within
Bankhead
National
Forest
(BNF)
Alabama,
southeast
USA.
During
our
two
simulated
event
days,
rates
predicted
be
least
an
order
magnitude
higher
SGP
compared
BNF
largely
due
lower
sulfuric
acid
(H
2
SO
4
)
BNF.
Among
mechanisms
WRF‐Chem,
we
find
that
dimethylamine
(DMA)
+
H
mechanism
dominates
SGP.
ELVOCs
critical
explaining
particles
observed
Treating
as
semisolid,
strong
diffusion
limitations
vapor
uptake
phase,
brings
predictions
into
closer
agreement
observations.
also
simulate
non‐NPF
days
show
low‐level
clouds
reduce
photochemical
activity
corresponding
reductions
concentrations,
thereby
lack
NPF.
Язык: Английский
Prospecting Pharmacologically Active Biocompounds from the Amazon Rainforest: In Vitro Approaches, Mechanisms of Action Based on Chemical Structure, and Perspectives on Human Therapeutic Use
Pharmaceuticals,
Год журнала:
2024,
Номер
17(11), С. 1449 - 1449
Опубликована: Окт. 30, 2024
The
Amazon
rainforest
is
an
important
reservoir
of
biodiversity,
offering
vast
potential
for
the
discovery
new
bioactive
compounds
from
plants.
In
vitro
studies
allow
investigation
biological
processes
and
interventions
in
a
controlled
manner,
making
them
fundamental
pharmacological
biotechnological
research.
These
approaches
are
faster
less
costly
than
vivo
studies,
providing
standardized
conditions
that
enhance
reproducibility
precision
data.
However,
methods
have
limitations,
including
inability
to
fully
replicate
complexity
living
organism
absence
complete
physiological
context.
Translating
results
models
not
always
straightforward,
due
differences
pharmacokinetics
interactions.
this
context,
aim
literature
review
assess
advantages
disadvantages
search
drugs
Amazon,
identifying
challenges
limitations
associated
with
these
comparing
testing.
Thus,
bioprospecting
involves
evaluating
plant
extracts
through
bioassays
investigate
pharmacological,
antimicrobial,
anticancer
activities.
Phenolic
terpenes
frequently
identified
as
main
agents,
exhibiting
antioxidant,
anti-inflammatory,
antineoplastic
Chemical
characterization,
molecular
modifications,
development
delivery
systems,
such
nanoparticles,
highlighted
improve
therapeutic
efficacy.
Therefore,
offers
great
drugs;
however,
significant
challenges,
standardization
extraction
need
clinical
trials,
must
be
overcome
become
viable
medications.
Язык: Английский
Chemical Composition of Secondary Organic Aerosol Formed from the Oxidation of Semivolatile Isoprene Epoxydiol Isomerization Products
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(51), С. 22571 - 22582
Опубликована: Дек. 12, 2024
3-Methylenebutane-1,2,4-triol
and
3-methyltetrahydrofuran-2,4-diols,
previously
designated
"C5-alkene
triols",
were
recently
confirmed
as
in-particle
isomerization
products
of
isoprene-derived
β-IEPOX
isomers
that
are
formed
upon
acid-driven
uptake
partition
back
into
the
gas
phase.
In
chamber
experiments,
we
have
systematically
explored
their
phase
oxidation
by
hydroxyl
radical
(•OH)
a
potential
source
secondary
organic
aerosol
(SOA).
•OH-initiated
both
compounds
in
presence
ammonium
bisulfate
resulted
substantial
volume
growth.
Compositions
low-volatility
particulate
phases
established
high-resolution
mass
spectrometry
measurements.
Under
conditions
mimicking
Southeast
USA
(50%
relative
humidity,
bulk
seed
pH
1.4),
estimate
SOA
yield
from
3-methylenebutane-1,2,4-triol
to
be
93.1%,
equating
1.95
±
0.81
Tg
C
Yr-1,
3-methyltetrahydrofuran-2,4-diol
26.7%,
1.76
1.26
Yr-1.
Previously
unreported
products,
2,3-dihydroxy-2-(hydroxymethyl)propanal,
1,3,4-trihydroxybutan-2-one,
four
organosulfates
been
ambient
SOA,
aid
understanding
isoprene
pathways
HO2•
dominated
environments
NOx
levels
continue
decline
US.
This
work
underlines
need
for
inclusion
partitioning
semivolatile
atmospheric
models.
Язык: Английский