• The Korean Journal of Community Living Science
• /
• v.24 no.2
• /
• pp.187-194
• /
• 2013

The purpose of this study was to define the optimal boxthorn berries washing method for developing the boxthorn berries cleaner. We analyzed the rate of removal of residual pesticides according to washing methods; 1st - habitual washing method, 2nd - drum rotation washing method, 3th - drum rotation and air bubble washing method, 4th - drum rotation and nozzle spray washing method, 5th - drum rotation and air bubble and nozzle spray washing method. A rate of removal of residual pesticides of 88% was detected in the drum rotation and air bubble and nozzle spray washing method, and a rate of 82% was detected in the habitual washing method. The drum rotation and air bubble and nozzle spray washing method appeared to be the best good washing effect compared to the habitual washing method(about 6% compared to 82.0% higher). Clothianidin Triadimefon, Triforine ingredients, the drum rotation and air bubble and nozzle spray washing method efficiency was lower compared to the habitual washing method removal efficiency.

• Korean Journal of Food Science and Technology
• /
• v.27 no.5
• /
• pp.768-772
• /
• 1995

The physico-chemical properties of hot-water extracts of dried and roasted Boxthorn(Lycii fructus) were investigated. The proximate composition of dried Boxthorn was 17.5% moisture, 5.4% ash, 14.7% lipid, 18.9% protein, 11.8% fiber and 31.7% carbohydrate. As the roasting temperature and time increased, water soluble solids, turbidity, titrable acidity and redness of the hot water extracts were increased, while the free sugar content was reduced. The linoleic acid of roasted Boxthorn decreased and palmitic acid increased at higher roasting temperature. The sensory properties of sweet odor, burnt odor, sour taste, burnt taste and tannic taste of the hot water extract were scored higher and sweet and roasted taste were lower as the roasting temperature and time increased.

• Korean Journal of Medicinal Crop Science
• /
• v.8 no.4
• /
• pp.291-296
• /
• 2000

To evaluate the biological effects of boxthorn (Lycium chinense Mill.) extracts on the immune response systems, the mitogenic effects were tested by LPS (lipopolysaccharide) and Con A (concanavalin A) using water extracts from various parts of Lycium chinense Mill. The proliferation of B-lymphocytes which were activated by the mitogen, LPS, was markedly increased in the concentration of 0.1mg/ml to 0.5mg/ml, but inhibited in more than 0.5mg/ml. It increased only proliferation of B-lymphocytes but not that of T-lymphocytes by Con A. There was no difference between boxthorn species in immune response. Water extracts of various parts in boxthorn enhanced the humoral immune response which was related to B-lymphocytes.

• KOREAN JOURNAL OF CROP SCIENCE
• /
• v.43 no.3
• /
• pp.189-193
• /
• 1998

Volatile components were extracted from leaves of two Boxthorn (Lycium chinense M.) cultivars by using simultaneous distillation and extraction, analyzed by gas chromatography-mass spectrometry. Seventy components were identified : 13 acids, 15 alcohols, 18 hydrocarbons, 13 carbonyls, three esters, three ionones, and five others. The principal volatile components (and their peak area percentage) were n-pentanol (11.2～30.2%), phytol (14.5～28.3%), hexadecanoic acid (13.5～17.1%) 2,3-dihydrobenzofuran (1.5～4.2%), benzyl alcohol (1.9-4.8%), phenylacetaldehyde (1.8～3.2%), and octadecadienoic acid (1.7～10.7%). Fresh leaves showed much higher peak area than that of dried leaf in n-pentanol, n-hexanol, cis-2-penten-l-ol, cis-3-hexen-l-ol, benzyl alcohol, and $\beta$-phenylethyl alcohol, while dried leaves showed much higher content than that of fresh leaves in 9-hydroxytheaspran A, octadecanoic acid and octadecadienic acid.

• 한국약용작물학회:학술대회논문집
• /
• 2012.05a
• /
• pp.119-120
• /
• 2012

• Korean Journal of Medicinal Crop Science
• /
• v.21 no.5
• /
• pp.348-352
• /
• 2013

This study was carried out to investigate the effect of sucrose, boric acid, and calcium nitrate in optimum pH and relative humidity on pollen germination and pollen tube growth of boxthorn (Lycium chinense M.). Medium containing 100mg/L of $H_3BO_3$ showed maximum pollen germination and pollen tube elongation, 64.8% and $920{\mu}m$. Additionally supplied calcium nitrate to the medium lowered pollen germination rate and pollen tube elongation. Here we report the optimum conditions for the pollen germination and pollen tube development was observed at 10% sucrose, 1.0% agar, pH 6.0, and 100% relative humidity.

• Korean Journal of Food Science and Technology
• /
• v.24 no.6
• /
• pp.597-602
• /
• 1992

To improve utilization of boxthorn (Lycii Fructus), the boxthron and mixed boxthron (Lycii Fructus, Schizandrae Fructus, Corni Fructus, Zizyphi Fructus, Zingiberis Rhizoma, Cinnamami Cortex) hot-water extractable concentrates were prepared by vaccum evaporation and its rheological properties were investigated. The rheological properties of concentrates $(20{\sim}50^{\circ}Bx)$ followed power low model and showed a pseudoplastic behavior at the temperature range of $20{\sim}60^{\circ}C$. The apparent viscosity of $20^{\circ}Bx$, $30^{\circ}Bx$, $40^{\circ}Bx$ and $50^{\circ}Bx$ boxthron hot-water extractable concentrate was 0.0074 Pa s, 0.0175 Pa s, 0.0431 Pa s and 0.0988 Pa s, that of mixed boxthorn hot-water extractable concentrate was 0.0099 Pa s, 0.0328 Pa s, 0.0720 Pa s and 0.1940 Pa s at $20^{\circ}C$ and 1500 l/s, respectively. The yield stress of boxthron and mixed boxthron hot-water extractable concentrates ranged from 0.045 to 6.253 Pa and from 0.022 to 8.891 Pa, respectively. The activation energy for the flow of boxthron and mixed boxthorn hot-water extractable concentrates increased from 1.6182 to $2.0543{\times}10^7\;J/kg{\cdot}mol$ and from 1.7057 to $2.1462{\times}10^7\;J/kg{\cdot}mol$ with the concentrations of concentrates, respectively.

• 한국약용작물학회:학술대회논문집
• /
• 2011.09a
• /
• pp.402-403
• /
• 2011

• Journal of Microbiology and Biotechnology
• /
• v.27 no.8
• /
• pp.1386-1391
• /
• 2017

The bioactivities of boxthron fruits, a source of oriental medicine, are well known, whereas phytochemical studies of the boxthorn stem are rare. In this study, the stem extract of boxthorn (Lycium chinense Miller) and its subfractions were evaluated for their effects on nitric oxide (NO) inhibition and procollagen type I peptide (PIP) synthesis. A phenolic amide isolated from the stem extract was also assayed for these effects. The compound, N-trans-feruloyltyramine, was identified by $^1H$, $^{13}C$, and 2D-nuclear magnetic resonance analyses. In NO inhibition, the chloroform fraction (CF) exhibited the strongest inhibitory activity ($MIC_{50}=24.69{\mu}g/ml$) among the subfractions of the ethanol extract (EE). N-trans-feruloyltyramine isolated from the CF showed strong NO inhibitory activity, presenting with an $MIC_{50}$ of $31.36{\mu}g/ml$. The EE, CF, and N-trans-feruloyltyramine shown to have NO inhibition activity were assayed for the activity of PIP synthesis. The EE and CF showed relatively high PIP values of 38.8% and 24.21% at $100{\mu}g/ml$, respectively. The PIP value for $20{\mu}g/ml$ N-trans-feruloyltyramine showed a 36% increase compared with the non-treated control, whereas that treated with $20{\mu}g/ml$ ascorbic acid as a positive control showed a 13% increase. The results suggest that the proper stem extract of boxthorn stem could be efficiently used to produce good cosmetic effects.

• Journal of Food Hygiene and Safety
• /
• v.14 no.3
• /
• pp.238-243
• /
• 1999

The storage stability from powdered anchovy and its preparation cooperated with three additives (water extract from green tea and boxthorn and BHT) was studied. The results are as follows: 1. When the additives were added to powdered anchovy, the storage stability was improved. The antioxidative activities of water extract from green tea and boxthorn were considerably higher than BHT. The antioxidative activities were decreased in the rank order boxthorn > green tea> BHT. 2. The more the concentration of natural additives was increased, the more the storage stability was improved. The rank order was$60^{\circ}>40^{\circ}>20^{\circ}$ Bx. 3. The A V and POV of powdered anchovy were increased in the rank order to 6 < 12 < 18 < 24 < 30 months by storage term. 4. This clearly suggested that water extract at $20^{\circ}>$ Bx level from boxthorn was possible utilization as a new natural antioxidant for storage stability of powdered anchovy.