PINE BARK EXTRACTION
METHOD OF PROCESSING PINE TREE BARK
FIELD: chemistry. SUBSTANCE: method of processing pine tree bark
involves extraction of the bark using a non-polar solvent with
extraction of coniferous wax, subsequent extraction of pectin from
the bark and treatment of the bark residue in activated carbon.
After extraction of coniferous wax, the bark residue is extracted
with 15% aqueous ethanol at boiling temperature for 0.5
ISOLATION PROCESS FOR PROANTHOCYANIDIN FROM THE BARK OF
...An isolation process of proanthocyanidin from the bark of pine
tree is provided to improve purity of proanthocyanidin by
performing... and cosmetics. An isolation process of
proanthocyanidin from the bark of pine tree comprises the steps
of: extracting the bark... tree bark to remove precipitates;
concentrating the filtered pine tree bark extract; and extracting
the concentrate of pine tree bark ...
Process of extracting tannin from pine bark
The present invention discloses a process of extracting tannin
from pine bark. The method comprises the following steps of: (1)
pre-treatment: grinding naturally dried pine bark, and sieving the
ground pine bark by using a 100 mesh sieve, so as to obtain pine
bark powder for later use; (2) microwave-assisted extraction:
weighing out pine bark powder, putting the ...
Extraction of oligomeric anthocyanin from pine bark
Extraction of oligomeric protocyanidin from pine barks is carried
out by: extracting it from raw pine bark powders with a...
Masson pine bark extract for treating squamous cell lung
carcinoma as well as preparation method and composition of
masson pine bark extract
...The invention discloses a masson pine bark extract for treating
squamous cell lung carcinoma as well as a preparation method...)
smashing masson pine bark till the size reaches 200-800 meshes,
thus preparing masson pine bark powder; (2) at 4... to prepare
masson pine bark water extract solution; and (4) drying the masson
pine bark water extract solution. The masson ...
Method for extracting phenolic substances from pine bark
The invention relates to a method for extracting phenolic
substances from pine bark. The method comprises the following
steps: (1... degraded through biological enzymolysis; efficient
extraction of the active ingredients of the pine bark is realized
through cooperation of first-time water extraction and second-time
alcohol extraction. The extraction method has the advantages of
simple process, no pollution, high ...
Method for preparing Yunnan pine bark procyanidine
...The invention discloses a method for preparing Yunnan pine bark
procyanidine. The method comprises steps: firstly, Yunnan pine
barks are.... Through the enzyme-high voltage pulse electric field
auxiliary extraction method, the extraction rate and the yield of
Yunnan pine... used, resources are saved, and pollution discharge
is reduced. The extraction rate of the prepared Yunnan pine bark
procyanidine is ...
EXTRACTION METHOD FOR THE EXTRACT CONTAINING
PROANTHOCYANIDIN FROM PINE BARK USING ALKALI AS SOLVENT
...A method for extracting an extract containing proanthocyanidin
from bark of pine tree using alkali is provided to obtain
an.../and fishes. A method for extracting an extract containing
proanthocyanidin from a bark of pine tree comprises: a step of
pretreating the bark with low frequency, electric filed or
magnetic field; a step of adding the bark with 0.095-0.4 ...
Separation and extraction process of oligomer
proanthocyanidin from pine bark
The separation and extraction process of oligomer proanthocyanidin
from pine bark includes the steps of: pre-treatment, extraction,
recovering solvent, concentration, solid-liquid separation,
concentration, counter current extraction, concentration, drying,
sterilizing and packing. During the extraction, water and ethyl
acetate are used as solvent. The said process has high extraction
rate, low cost, high product yield and quality, product OPC ...
Process for manufacturing pine bark extract
...The invention relates to a process for manufacturing pine bark
extract, belonging to the technical field of plant extract. The
process comprises the following steps: adding 8 times of 50-70
percent of ethanol into a pine bark raw material... the pine bark
extract. The process adopts multiple extraction and multiple stage
centrifugation, and adopts a rough extraction desorbing method ...
Bioflavanoid-rich potent extract and process for the
extraction from white oak bark and pine bark
A bioflavanoid rich potent extract and process for the extraction
from oak bark and pine bark that is highly enriched...
EXTRACTION METHOD FOR ANTIOXIDANTS FROM PINE TREES USING
NATURAL SOLVENTS AND ANTIOXIDANT EXTRACTS THEREBY
...Disclosed herein is a method of extracting a natural
antioxidant from the bark of pine trees using a natural solvent...
from the bark of pine trees using an alcohol solution as a natural
solvent, to obtain an antioxidant extract; and..., and is
environmentally friendly and economical, thus providing a natural
antioxidant having high antioxidant activity from the bark of pine
Method for purifying oligomeric proanthocyanidin in pine
... pine bark by using combination of endoglucanase and microwaves
and membrane separation technology, with water used as an
extraction solvent. The method has following main characteristics:
water is used as the extraction solvent; microwave extraction
accelerates an extraction speed; to... plurality of technologies
enables extraction time to be substantially reduced, an extraction
speed to be increased and an extraction period ...
METHOD FOR EXTRACTING THE BARK OF A PINE USING ACCLERATED
...PURPOSE: An extracting method of a pine tree bark extract using
an accelerated solvent etraction is provided to improve
extracting... method of a pine tree bark extract comprises the
step of: processing a subcritical solvent in pine tree bark.
The... forma erecta. [Reference numerals] (AA) Comparing rate of
the bark of pine tree extract; (BB) Extraction yield (%); (CC) Hot
METHOD OF PRODUCING PROANTHOCYANIDIN-CONTAINING MATERIAL
...The method for producing proanthocyanidin-containing product of
the present invention comprises the steps of providing a pine bark
as a starting material, extracting the pine bark with at least one
of water and an organic solvent, and treating the... to one part
by weight of the pine bark, and performing extraction at 80 to 85°
C. for one ...
Nano-scale pine bark extract and preparation method thereof
...The invention relates to a method for extracting nano-scale
proanthocyanidin oligomers from pink bark. The production
technical process of the method comprises: raw material treatment,
filtrate extraction treatment, concentration treatment,
high-efficiency countercurrent extraction treatment, dilution
treatment, water dissolution... the method, water is used as an
extraction solvent, ethyl acetate is used as an extraction
solvent, and after weakly ...
Improved Process for Obtaining Tanning Material from
In obtaining tanning-extract from pine-tree bark, the resin is
removed before lixiviation of the bark. The solvent employed for
the resin must have a boiling-point of slightly over 100‹ C. at
atmospheric pressure, so that drying of the water in the bark can
be carried on simultaneously with ...
Method for enriching and purifying procyanidin in pine bark
... pine bark. The method is characterized in that an intermittent
distillation and macropore adsorbent resin coupling technology is
used to..., extraction is convenient and quick, raw material
source is rich, production cost is low, separation effect is
obvious, extraction purity... achieved, and the defects of low
conventional extraction rate and low extraction purity are
overcome. In the method, the macropore ...
Method for extracting proanthocyanidins from Yunnan pine
The invention discloses a method for extracting proanthocyanidins
from Yunnan pine bark. The method comprises the following steps:
(1) crushing Yunnan pine bark, and then adding cellulase and
acetic acid-sodium acetate buffer solution to carry out
enzymolysis on the crushed bark; (2) carrying out ultrasonic
treatment in an enzymolysis process; (3) adding an ethanol
solution into the enzymatic hydrolysis ...
Preparation method of natural red pine bark dye
...The invention provides a preparation method of a natural red
pine bark dye. The preparation method includes the steps: (1... to
dry the barks for 8-15 hours; (2) mechanically crushing the dried
red pine barks to reach powder of 30-60 meshes, adding the crushed
red pine bark powder into ethanol aqueous solution with volume
ratio of 45% ...
PINE TAPPING METHOD
...FIELD: forestry, extraction of oleoresin and juice of conifer
and other kinds of trees. SUBSTANCE: method involves visual
selection of... process on tree trunks; marking sink holes in
zones of stimulating physiological process, with inhibition zones
being left for bark ...
Method for the extraction of tannin from pine tree bark and
for the preparation of tannin-phenol-formaldehyde adhesives for
the production of plywood for external use
A method for the extraction of tannins (I) from the bark of Pinus
pinaster and for obtaining tannin-phenol-formaldehyde...
METHOD FOR PRODUCING OF ESSENTIAL OIL FROM CONIFEROUS PLANT
...FIELD: forest, pharmaceutical and chemical industry, medicine
and other branches of industry, in particular, extraction of
essential oils from plant...-0.15 MPa for 8-10 hours. Plant
material is bark of Khingam fir, Dahurian larch, and Korean cedar
pine ground ...
Preparation method of proanthocyanidin
The invention discloses a preparation method of proanthocyanidin.
In the method, grape seed, pine bark, purple potato or any other
plant with high proanthocyanidin content is used as a raw
material, an ethanol aqueous solution is used as an extraction
solvent, and a double water phase extraction method is utilized to
efficiently prepare proanthocyanidin from a crude proanthocyanidin
extract. The ...
PROCESS FOR EXTRACTION OF CARBON HYDRATE PART OF PINE BARK
WATER SOLLUTION FROM POLYPHENOLIC PART
Process for the production of tanning extracts
... examples, bark is extracted by heat in a battery of extractors
worked on the counter-current system, sodium hydroxide
(Examples... 6) being added to the extractor containing fresh
bark. Pectins are removed in Example 3 by preliminary cold
extraction with... extraction of pine bark, quebracho, mimosa
bark, oak wood, and chestnut wood and the product is particularly
useful in producing ...
Thin layer detection method for quickly identifying true
and false grape seed extract
... the grape seed extract is mixed with pine bark, cutch and
arachis hypogaea. The method comprises the following steps that
step 1, the grape seed extract, arachis hypogaea extract, cutch
extract, pine bark extract and to-be-identified grape seed extract
are taken to be crushed and sieved, and mixed with ethyl alcohol,
and ultrasonic extraction is carried out to ...
Extraction of biologically active compounds from plant
material using acid and antioxidant
...Disclosed are methods of extraction of biologically active
compounds from a botanical material including the steps of: A)
Reducing the...; Hawthorn; Hops; Passion Flower; Pine Bark; Red
Clover; Olive Leaf; currants; berries and a combination thereof.
Method used for extracting extracted product rich in
proanthocyanidins from plant raw materials
... belongs to the field of effective part extraction. According
to the method, a urea composite solution is used for extracting...
extraction and enrichment of oligomeric proanthocyanidins; and
organic phase vacuum concentration, vacuum drying, or spray drying
are adopted so as... the raw material, the proanthocyanidins yield
ranges from 6 to 6.5%; when pine bark is taken as the raw ...
Improvements in or relating to the Extraction of Tanning
Substances and Apparatus therefor.
... such as oak bark, pine bark, quebracho wood, &c. Fig. 1
shows in vertical section an apparatus for the extraction of
easily-soluble tanning materials, such as those contained in oak
bark. The apparatus comprises a rotary perforated drum b... a 1 ,
when necessary. The centrifugals are filled with fresh
tanning-materials in turn, the water always entering the one in
which the extraction has proceeded furthest. ...