• Journal of Bio-Environment Control
• /
• v.17 no.1
• /
• pp.20-25
• /
• 2008

This study was conducted to develop the industrial producing technology of sprout vegetables using the cut twigs of woody plants. We have cut the twigs of wild mulberry tree on 13 April,2006 to examine the sprouting rate as affected by the storage conditions on relative humidity of $40{\sim}50%$ and $80{\sim}90%$ under $4{\sim}6^{\circ}C$ temperature. And we have also investigated the sprouting growth following those storage period of twigs cut with $1{\sim}3$ buds. The longer storage periods, the less survival rate of wild mulberry twigs cut. The sprouting rate of cut twigs gathered on the day which had not stored at low temperature was 97.4%. And The sprouting rate at the relative humidity of $40{\sim}50%$ after storing at low temperature for 122 days were 34.2%, and that of at $80{\sim}90%$ relative humidity was 85.7%. The longer storage periods, the more the number, length and width of sprouts. Therefore, the twigs of a wild mulberry trees cut with $1{\sim}3$ buds were able to produce the sprout vegetables under the condition of temperature $4{\sim}6^{\circ}C$ and relative humidity $80{\sim}90%$.

• Journal of Bio-Environment Control
• /
• v.18 no.1
• /
• pp.60-66
• /
• 2009

This study was conducted to investigate into the effective drying method for three greens such as bang-a (Isodon japonicus), aster (Aster yomena) and lettuce greens (Ixeris dentata) Nakai. We have dried three greens using the different drying methods, have made methanol extracts and have also determined the physiological activities in $1,000mg{\cdot}L^{-1}$ extracts. Total phenolic compound contents were most increased by 65.1 and $60.2mg{\cdot}L^{-1}$ in the extracts of bang-a and aster which were frozen dried, however, that in lettuce greens were oven dried by $51.2mg{\cdot}L^{-1}$. Total flavonoid contents were extremely much more in bang-a extracts dried in the oven by $70.6mg{\cdot}L^{-1}$, however, aster and lettuce greens extracts frozen dried by 53.9 and $35.8mg{\cdot}L^{-1}$. DPPH radical scavenging activity in bang-a extracts were greatly increased by 78.8% when bang-a were frozen and dried, however, that in aster were not significant by $89.8{\sim}90.9%$. DPPH radical scavenging activities in lettuce greens extracts were became highest in the order f oven drying (91.9%), natural drying (91.0%) and freeze drying methods (90.9%). Nitrite radical scavenging activities in bang-a and aster extracts were most increased in the natural drying treatment by 73.3 and 78.2%, however, that in lettuce greens extracts were highest in freeze drying treatment by 75.1%.

• Korean Journal of Plant Resources
• /
• v.22 no.1
• /
• pp.42-48
• /
• 2009

This study was conducted to examine the difference in yield and size of enlarged rhizome according to the kinds of native white lotuses. Four white lotuses (Nelumbo nucifera) were collected from 4 different sites, Jeonbuk Jeonju ('Garam'), Jeonnam Muan ('Hoesan'), Chungnam Buyeo ('Ihnchuisa'), and Chungnam Cheongyang('Cheongyang'). Each enlarged rhizome was planted in an area of 3.3 $m^2$ on 10. April, 2007 and digged out on 19. February, 2008. The yield of enlarged rhizome was in the order of Hoesan (3.0 kg/$m^2$), Cheongyang (2.5 kg/$m^2$), Garam (2.0 kg/$m^2$) and Ihnchuisa (1.0 kg/$m^2$). The number of enlarged rhizomes was in the order of Ihnchuisa (4.9/$m^2$), Garam (4.3/$m^2$), Hoesan (4.2/$m^2$) and Cheongyang (4.1/$m^2$). Total number of nodes in the enlarged rhizomes were much more in the order of Hoesan (17.0/$m^2$), Ihnchuisa (16.0/$m^2$), Cheongyang (15.3/$m^2$) and Garam (14.1/$m^2$). Component ratio of enlarged rhizome length below 50cm for Ihnchuisa, Garam, Hoesan and Cheongyang were 76.3%, 53.0%, 38.2% and 40.3% respectively. Native white lotus had a longer enlarged rhizome in the first node than the other nodes, and their enlarged rhizome length and width became thin. And it became thick and short from the second node of enlarged rhizome. Accordingly the amount of enlarged rhizomes 'Hoesan' was extremely much than others.

• Korean Journal of Plant Resources
• /
• v.25 no.5
• /
• pp.543-549
• /
• 2012

To gather the basic data for increasing the utilization of Isatis tinctoria, we examined the effects of both antioxidative enzyme activity and antimicrobial activity from the extract of Isatis tinctoria. Ascorbate Peroxidase activities reveal that there is an decrease in order; ethanol extract from its stem (1601.7 Unit/mg protein), methanol extract from its leaf (1133.7 Unit/mg protein) and distilled water extract from its leaf (524.3 Unit/mg protein). Catalase activities reveal that there is an decrease in order; ethanol extract from its flower petal (177.1 Unit/mg protein), methanol extract from its leaf (120.8 Unit/mg protein) and distilled water extract from its flower petal (55.4 Unit/mg protein). Peroxidase activities reveal that there is an decrease in order; ethanol extract from its flower petal (27.1 Unit/mg protein), methanol extract from its flower petal (14.6 Unit/mg protein) and distilled water extract from its stem (10.4 Unit/mg protein). Superoxide dismutase activities reveal that there is an increase in order; distilled water extract from its root (90.8%), methanol extract from its flower petal (80.1%) and ethanol extract from its root (75.5%). Its flower extract showed a antimicrobial activity only against Vibrio parahaemolyticus, its root extract had only against Staphylococcus aureus, and its stem extract had against Bacillus subtilis, Escherichia coli and Staphylococcus aureus, regardless of solvents. Especially, distilled water extract from its leaf showed a high antimicrobial activity against both Bacillus subtilis and Escherichia coli and inhibition diameters against those were 30.0 and 24.0 mm, respectively.

• Korean Journal of Plant Resources
• /
• v.21 no.4
• /
• pp.304-309
• /
• 2008

All the seeds of rape (Brassica napus) sprout vegetables were germinated within three days after seeding irrelevant to the light colors. The total fresh weight of rape sprout vegetables at 6 days after seeding have been increased when grown under green and white color lights by 0.339g/10plants and 0.339g/10plants compared with the control. The total flavonoid contents in rape sprouts were increased under red and blue lights by 72.5 and 70.9mg${\cdot}L^{-1}$. Those DPPH radical scavenging activities at 2,000mg${\cdot}L^{-1}$ were increased by 90.0 and 90.3% which were sprouted and grown under blue and white lights. Nitrite radical scavenging activity of sprouts were most decreased compared with the control when grown under the red light by 57.4mg${\cdot}L^{-1}$. And mushroom tyrosinase inhibition activity of rape sprouts was extremely increased under the green light by 22.5mg${\cdot}L^{-1}$.

• Korean Journal of Plant Resources
• /
• v.22 no.5
• /
• pp.403-411
• /
• 2009

This study was conducted to gather the basic data on the increase of utilization for the Japanese staunton vine (Stauntonia hexaphylla), native plants which were grown in the southern districts in Korea. We have also determined their partial physical and chemical compositions and their physiological activities. Vitamin C contents in fruit skin was 85.23 mg/100 g, and that in flesh was 61.67 mg/100 g. Total amino acids contents in fruit skin increased much more by 762.72 mg/100 g DW compared to that in flesh by 434.05 mg/100 g DW. Inorganic matter contents were more increased in the fruit skin (108.48 mg/$\ell$) and its main components were K (76.53 mg/$\ell$), Ca (20.20 mg/$\ell$) and Mg (6.22 mg/$\ell$). Total phenol compound and flavonoid contents in 1,000 mg/$\ell$ methanol extracts were 7.3-9.6 mg/$\ell$ and 5.1-6.7 mg/$\ell$. Nitrite radical scavenging activity in 4,000 mg/$\ell$ methanol extracts of fruit skin and flesh for Stauntonia hexaphylla were 79.5% and 77.8%, however, that in seeds was 17.1%. Overall mushroom tyrosinase inhibition activity (% of control) was less than 10.8%. Anti-microbial activities of methanol extracts from the fruit skin against the gram negative and positive microbial strains were not significant in the lower concentration of extracting solution, however, that from flesh and seeds in terms of the inhibition diameter were $8.91{\sim}12.25\;mm$.

• Journal of Bio-Environment Control
• /
• v.17 no.2
• /
• pp.116-123
• /
• 2008

This study was carried out to investigate into the effect of light-emitting diode (LED) for the light quality as a light source on the broccoli seed germination and the physiological activity of vegetable sprouts. We have also germinated seeds of the broccoli and applied LED as a light quality such as blue, green, red, white, yellow and red + blue color lights to their sprouts for 14 hours and kept dark for 10 hours at the temperature of $25^{\circ}C$ (day)/$18^{\circ}C$ (night). Broccoli sprouts were extracted by methanol and their physiological activities were examined. All broccoli seeds were germinated at 3 days after seeding regardless of the light color. Total sprout fresh weight were mostly became highest by 0.389g (10 plants) at 8 days after seeding when their sprouts were grown under blue color light. Total phenol compound contents in broccoli sprouts were extremely increased by $83.0\;mg{\cdot}L^{-1}$ under the white light, and total flavonoid contents were most much more by $72.6\;mg{\cdot}L^{-1}$ under the blue light. DPPH radical scavenging activity at $2,000\;mg{\cdot}L^{-1}$ were most highest by 93.5% in broccoli sprouts grown under the white light. Nitrite radical scavenging activity at the concentration of $500\;mg{\cdot}L^{-1}$ in sprout extracts were the most increased by 66.9% under the yellow light, and tyrosinase inhibition activity at $2,000\;mg{\cdot}L^{-1}$ in sprout extracts were by 14.5% under red light.

• FLOWER RESEARCH JOURNAL
• /
• v.16 no.3
• /
• pp.168-173
• /
• 2008

This study was conducted to determine biological characteristics of Acorus calamus L. angustatus by using aqueous, ethanol and methanol extracts from the leaves and the rhizomes of Acorus calamus L. angustatus plants. The highest total phenol contents were found in the extracts from the leaves of Acorus calamus L. angustatus ($68.4mg{\cdot}L^{-1}$) followed by rhizome ($49.3mg{\cdot}L^{-1}$). At $1,000mg{\cdot}L^{-1}$ the free radical scavenging activity of 1, 1-Diphenyl-2-picrylhydrazyl showed the highest activity in the extracts of the leaves and the rhizomes by 86.3% and 86.1%, respectively. Total flavonoid contents at $2,000mg{\cdot}L^{-1}$ extracts showed the greatest amount in the aqueous leaf extracts ($61.1mg{\cdot}L^{-1}$), and the ethanol rhizome extracts ($15.4mg{\cdot}L^{-1}$). Nitrite radical scavenging activity at $2,000mg{\cdot}L^{-1}$ was highest in the methanol extracts from leaves and rhizomes by 75.7% and 77.9%, respectively. Mushroom tyrosinase inhibition activity of leaves and rhizome from the Acorus calamus L. angustatus was very low, showing less than 1.3% regardless of the extract solvent, plant part, and concentration. These results indicated that methanol extracts from leaves exhibited higher biological activities than other extracts from rhizomes.

• Journal of the Korean Applied Science and Technology
• /
• v.38 no.6
• /
• pp.1735-1752
• /
• 2021

In this study, the Bodhi tree powder is used as an additive to Seolgi rice cake and the research is made how useful the additives are to the Seolgi rice cake. This research would be a good way to develop and distribute the Seolgi rice cake which is added with the powder of Bodhi tree. The results of the study are as follows. 1. The water contents of Bodhi tree was 81.64% with 1.75% of crude protein, 0.81% of crude fat, and 0.56% of crude ash. It was found out that the Bodhi tree has higher contents of polypherol and has the efficacy of anti-oxidation property and has the value as the food stuff. 2. When the Seolgi rice cake is made with the addition of Bodhi tree powder, the value of a and b, sugar, hardness, elasticity, texture and viscosity have risen while the contents of water, L value, pH, stickiness and cohesiveness were lowered. The property test showed that the addition of Bodhi tree to Seolgi rick cake would make all testing items "strong" and the addition of 4% of Bodhi tree in the manufacturing of Seolgi rice cake was most preferred. 3. As for the storage of Seolgi rice cake is concerned, as the period of storage goes by, the value a and b, hardness, elasticity and texture and viscosity have increased while the water contents, L value, stickiness and cohesiveness have reduced. As the period of storage gets longer, the total cell number has increased. But as the more volume of Bodhi tree is added to the rice cake, the total cell number has reduced, thus lengthening the storage period. The rest shows that in producing the Seolgi rice cake, the 4% of addition of Bodhi rice cake is deemed to be the best. It was confirmed that the proper volume of Bodhi powder is proper for the Seolgi rice cake and is also good for decorative and quality characteristics for the rice cake.