• Title/Summary/Keyword: Dried fruit

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Antioxidant Activities and Quality Characteristics of Mulberry Concentrate, Freeze-dried Mulberry, and Pomace (건오디, 건오디박, 오디 농축액의 품질특성 및 항산화성)

  • Jeon, Hye Lyun;Hong, Yoon Pyo;Lee, Ji Hyun;Kim, Hyung Don;Kim, Mee Ree
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.41 no.10
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    • pp.1402-1408
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    • 2012
  • Mulberry pomace, a by-product obtained from mulberry juice, has not been utilized as food. In this study, antioxidant activities, proximate composition and physiochemical characteristics of mulberry pomace were evaluated and compared with those of mulberry fruit or mulberry concentrate. Mulberry fruit was pressed and filtered. The filtrate and residue were used as mulberry juice and mulberry pomace, respectively. Mulberry juice was evaporated, after which a concentrate ($24.7^{\circ}Brix$) was obtained. Moisture contents of mulberry concentrate, freeze-dried mulberry, and pomace were 68.7%, 6.03%, and 7.32%, respectively. Reducing sugar contents were 45.7% in freeze-dried mulberry, 24.5% in pomace, and 30.9% in mulberry concentrate. The pH and acidity of the three samples ranged from 5.80~5.92 and, 0.035~0.080%, respectively. Carbohydrate and crude ash contents were the highest in mulberry fruit, whereas crude protein, fat, and fiber contents were the highest in pomace. Redness of the Hunter color system was 4.7 in mulberry and 4.3 in pomace. Total phenolic content was the highest in mulberry fruit, whereas total flavonoid content was the highest in pomace. Antioxidant activities (DPPH, hydroxyl, and ABTS radical scavenging activities) were enhanced in the order of mulberry fruit> pomace> mulberry concentrate. Especially, antioxidant activities, such as DPPH and hydroxyl radical scavenging activities, of mulberry pomace were similar with those of mulberry fruit. Based on these results, freeze-dried mulberry pomace may be considered as a functional as well as an additive material for food processing.

Analgesic and Anti-inflammatory Activities of Momordica dioica Fruit Pulp

  • Ilango, K.;Maharajan, G.;Narasimhan, S.
    • Natural Product Sciences
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    • v.9 no.4
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    • pp.210-212
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    • 2003
  • In the present study Momordica dioica fruit pulp was successively extracted with hexane and methanol. To the concentrated methanolic extract ethyl acetate was added and ethyl acetate soluble portion was separated. Both hexane extract (HE) and ethyl acetate soluble portion (EASP) of methanolic extract was vacuum dried to yield the respective HE and EASP. HE and EASP were evaluated for its analgesic and anti-inflammatory activities in a dose of 50 and 100 mg/kg in mice and rats. Both HE and EASP significant exhibited analgesic and anti-inflammatory activities when compare to standard drug.

Effects of Drying Conditions on the Profile of Volatile Terpenoid and Colour of Schizandra Fruit(Schizandra Chinensis fructus) (건조 조건이 오미자의 휘발성 terpene류 및 색도에 미치는 영향)

  • Kim, Yun-Je;Lee, Young-Guen;Choi, Young-Whan;Kim, Yong-Chul
    • Journal of Life Science
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    • v.18 no.8
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    • pp.1066-1071
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    • 2008
  • Schizandra fruit (Schizandra chinensis fructus) were dried by three processes, $50^{\circ}C$ (50HAD), $70^{\circ}C$ hot air (70HAD) and freeze drying process (FRD). Terpenoid were collected by SDE(Simultaneous Steam Distillation-Extraction) and followed by GC-MSD analysis. Also colour profile of each dried samples were measured by Hunter colorimeter. From fresh schizandra fruit, were detected 15 kinds of monoterpene, 28 kinds of sesquiterpene and 7 kinds of terpene alcohol. Myrcene(56.97 ${\mu}g/g$) and ${\gamma}$-terpinene(58.49 ${\mu}g/g$) were the major monoterpenes, ${\beta}$-elemene(120.16 ${\mu}g/g$), ${\alpha}$-bergamotene (103.45 ${\mu}g/g$), ${\gamma}$-selinene (75.97 ${\mu}g/g$), ${\beta}$-cubebene(66.69 ${\mu}g/g$), aristolene (51.25 ${\mu}g/g$) and ${\alpha}$-ylangene(28.06 ${\mu}g/g$) were the sesquiterpenes, and T-muurolol (96.45 ${\mu}g/g$) and terpinen-4-ol(46.02 ${\mu}g/g$) were the terpene alcohols. The dried samples lost more than half of terpenoid content of fresh schizandra fruit during early stage of drying process, and then the level of terpenoid content was not significantly changed. The content of sesquiterpenes appeared to increase until 6 day of FRD. The amount of residual terpene alcohols contained in schizandra fruit dried by FRD was more than those remained after drying by other processes, and schizandra fruit dried by 70HAD exhibited the least residual terpene alcohols. Brightness parameter $L^{\ast}$ decreased with the rise in the level of drying temperature, to which redness parameter $a^{\ast}$ and yellowness $b^{\ast}$ appeared to be similar.

Primary Food Commodity Classification of Processed Foods of Plant Origin in the Codex Food Classification (코덱스 식품 분류에서 식물성 가공식품의 원료식품 분류)

  • Mi-Gyung, Lee
    • Journal of Food Hygiene and Safety
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    • v.37 no.6
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    • pp.418-428
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    • 2022
  • The purpose of this study was to obtain the codex classification information on the primary food commodity (fresh state) of processed foods of plant origin that are included in the Codex Classification of Foods and Animal Feeds. Furthermore, whether or not the primary food commodity is included in the primary food classification from the Food Code of Korea was investigated. The results are summarized as follows: First, the Codex Classification information (number of classification codes/number of the primary food commodity group that fresh commodities of processed foods are classified/number of primary food commodity that is not included in the Codex Classification) by a processed food group appeared to be 46/8/0 for dried fruits, 76/11/1 for dried vegetables, 54/4/12 for dried herbs, 36/1/0 for cereal grain milling fractions, 17/4/3 for oils and fats (crude), 34/8/9 for oils and fats (refined), 20/8/0 for fruit juices, 3/2/0 for vegetable juices, and 19 codes for teas (in the Codex Classification, the primary food commodity group for tea does not exist). Second, the number of the primary food commodities not included in the Food Code of Korea was 9 for dried fruits, 14 for dried vegetables, 35 for dried herbs, 0 for cereal grain milling fractions, 6 for teas, 3 for oils and fats (crude), 9 for oils and fats (refined), 2 for fruit juices, and 0 for vegetable juices. Third, it was demonstrated that caution should be exercised when using Codex Classification due to differences in food classification between Codex and Korea, such as coconut (Codex, as tree nut as well as assorted tropical and sub-tropical fruit) and olive (Codex, as assorted tropical and sub-tropical fruit as well as olives for oil production), as well as special cases in the Codex Classification, such as dried chili pepper (Codex, as spice), tomato juice (Codex, as vegetable for primary food commodity and as fruit juice for juice) and ginger (Codex, as spice for rhizome and not including as primary commodity for leaves).

Amygdalin Contents in Peaches at Different Fruit Development Stages

  • Lee, Suk-Hee;Oh, Angela;Shin, Seo-Hee;Kim, Ha-Na;Kang, Woo-Won;Chung, Shin-Kyo
    • Preventive Nutrition and Food Science
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    • v.22 no.3
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    • pp.237-240
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    • 2017
  • Amygdalin contents of the seeds, endocarps, and mesocarps from three peach cultivars (i.e., Stone Peach, Hikawa Hakuho, and Bakhyang) were measured at three stages of fruit development (stone-hardening, fruit enlargement, and ripening). The peach samples were dried and defatted with a Soxhlet apparatus, reflux extracted with methanol, and analyzed using reverse phase high-performance liquid chromatography. During all fruit development stages, the amygdalin contents in the seeds were higher than those in the endocarps and mesocarps. The amygdalin contents of the Stone Peach were comparatively higher than the Hikawa Hakuho and Bakhyang (P<0.05). Further, the amygdalin contents during ripening were very low or not detected. Overall, the amygdalin contents of the three peach cultivar samples (seed, endocarp, and mesocarp) increased until the fruit enlargement stage and either remained constant or decreased during ripening.

Studies on Physicochemical Characteristics for Quality Control of Zizyphi Fructus by Appearance Grade (국산 건대추의 외형 등급별 품질특성 연구)

  • Bang, Mi Hui;Yu, Hye Young;Bae, Bong Seok;Park, Chol Su;Han, Min Woo
    • Korean Journal of Medicinal Crop Science
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    • v.28 no.6
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    • pp.455-462
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    • 2020
  • Background: The purpose of this study was to analyze the applicability of dried jujube (Zizypui Fructus) distributed by size as a functional food material and herbal medicine by evaluating its physicochemical characteristics and betulinic acid content. Methods and Results: It was shown that the carbohydrate content of in jujube fruit significantly increased with fruit size; 81.42% for large, 79.83% for medium, and 76.39% for small. Similarly, the dilute ethanol extract content of each group was 72.48% (large), 69.56% (medium), and 64.16% (small). A free sugar analysis indicated that glucose, fructose and sucrose were found in quantitieds proportional to jujube fruit size, the total free sugar values were 68.85%, 63.93%, and 57.37% for large, medium, and small fruit sizes respectively. The betulinic acid content for large, medium, and small fruit was 0.50 mg/g, 0.54 mg/g, and 0.58 mg/g respectively, indicating that smaller jujube contained a higher amount of betulinic acid. Conclusions: It is considered that betulinic acid content could be used as a criteria for jujube fruit quality control.

Inhibitory Effects of Mulberry Fruit on Intestinal Disaccharidase Activity and Hyperglycemia in Streptozotocin-Induced Diabetic Rats

  • Hong, Jung-Hee;Kim, Sang-Woon;Choi, Kyung-Ho;Choi, Sang-Won;Rhee, Soon-Jae
    • Nutritional Sciences
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    • v.7 no.4
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    • pp.201-207
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    • 2004
  • The current study examined the effects of freeze-dried mulberry fruit on disaccharidase activity in the small intestine and the lowering of blood glucose in streptozotocin (STZ)-induced diabetic rats. Sprague-Dawley male rats were randomly assigned to one normal and three streptozotocin (STZ)-induced diabetic groups. The diabetic groups were fed a mulberry fruit-free diet (DM-group), 0.3% mulberry fruit diet (DM-F group) or 0.6% mulberry fruit diet (DM-2F group). After they were fed the experimental diets for three weeks, diabetes was induced with an intraperitoneal injection of streptozotocin 50 mg/kg b.w before sacrificing 9 days later using the same experimental treatments. Analyses of anthocyanins, flavonoid and 1-deoxynojirimycin (DNJ) of lyophilized mulberry fruit were carried out and the major anthocyanins were rutin (142.5 mg), isoquercitrin (10.3 mg), quercetin (5.8 mg), morin (1.6 mg) dihydroquercetin (3.83 mg), cy-3-O-glucopyranoside (230.45 mg) and cy-3-O-rutinoside (131.5 mg) on the basis of 100 g dry weight. Total DNJ content was 2.39 mg/g dry weight of lyophilized mulberry fruit. Blood glucose level decreased in the diabetic mts fed the mulberry fruit supplement. The content of the liver glycogen increased in the diabetic mts fed the mulberry fruit supplement. Disaccharidase activity in the proximal part of the intestine, such as that of maltase, sucrase and lactase in the mulberry fruit supplementation groups, were lower than that of the DM group. These results suggest that mulberry fruit possess a suppressive effect on hyperglycemia, possibly by inhibiting the activity of disaccharidase in the small intestine of rats.

Growth Characteristics and Chemical Compounds in Schisandra chinensis Collections for the Selection of Superior Lines

  • Han, Sin Hee;Lee, Hee Jung;Kim, Yae Jin;An, Tae Jin;Cha, Seon Woo;Chang, Jae Ki
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2017.06a
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    • pp.366-366
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    • 2017
  • There are about 2 genera and 49 species of Schisandraceae all over the world which grow 2 genera and 5 species in korea. As'Schisandra'genus, S. chinensis, S. repanda, S. nigra and S. viridicarpa are distributed. As 'Kadsura' genus, there is K. japonica species. Although S. chinensis is often used for food and herbal medicine, 'Cheongsoon'is the only cultivar in korea. Therefore cultivar breeding is required for standardized production of Schisandra chinensis. To select superior lines, characteristics of collected varieties was investigated. These collections were from all the country including Mungyeong, Muju and Jangsu. In the case of 'Schisandra chinensis', analysis of chemical compound is very important. Because in 'Korean Pharmacopoeia', Schisandrin has to contain more than 0.7% of sum of Shizandrin, Gomisin A, Gomisin N as standard compound. According to the investigation, the weight of SC-154 was the highest one that was 99g of fresh fruit and 60g of dried fruit in the 100 granulas of it. As the control group, the weight of cultivar 'Cheongsoon'was 57g of fresh fruit and 40g of dried fruit. The chemical compounds such as Shizandrin A, Gomisin A, Gomisin N and Shizandrin C from the collections were analyzed by HPLC. As a result, all average of total content was 1.67% satisfied with the standard that is over 0.7%. Among them, SC-13, SC-22, SC-40 and SC-45 had more than 2.0% of compound. In this case, the content of Gomisin N was relatively higher than that of the other collections. It can be used for high content compound breeding. This above results indicate that these findings could be used for breeding superior Schisandra chinensis through selection of high quality resource.

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Antioxidant Activity of Momordica charantia L. Extracts (여주 추출물의 항산화 활성)

  • Park, Yeol;Boo, Hee-Ock;Park, Young-Lan;Cho, Dong-Ha;Lee, Hyun-Hwa
    • Korean Journal of Medicinal Crop Science
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    • v.15 no.1
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    • pp.56-61
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    • 2007
  • This study was carried out to determine the antioxidant activity and vitamin C contents in plant extracts of the Momordica charantia L. The vitamin C was detected as the highest content in immature fruit (92.2 mg/100 g), while the content in stem (2.5 mg/100 g) was lower 40 times than that of immature fruit. Antioxidant activity for the dried sample was investigated by TBA method. The lowest TBARS values were obtained from extracts of dried leaf and followed by ascorbic acid and BHT, showing that the extracts from dried leaf possess the strongest antioxidant activity. Compared with fresh tissues, SOD activity, ATX activity and CAT activity were high level in the dried tissue. These results suggest that the Momordica charantia L. would be a promising antioxidant source as an alternative antioxidant, based on natural plant resources.

Identification and Antibacterial Activity of Volatile Flavor Components of Cordyceps Militaris

  • Park, Mi-Ae;Lee, Won-Koo;Kim, Man-Soo
    • Preventive Nutrition and Food Science
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    • v.4 no.1
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    • pp.18-22
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    • 1999
  • Flavor characteristics of raw Cordyceps militaris significatntly different from those of dried one. In the case of raw Cordyceps militaris , major flavor components were composed of 5 alcohols, 3 ketones, 4 phenols, 9 alkanes , and 3 alkenes. The major alcohol was 1-octen-3-ol(22.56%, 1147.3% ng/ml), which contributed to the characteristic green flavor. Ketones (3-ocatone, inparticular )were present in the highest concentration in raw Cordyceps militaris . In contrast, major flavor components of dried Cordyceps militaris were composed of 4 alcohols, 4 ketones, 3 furans, 4 pyrizines, 2 dithiazines, 5 phenols , 8alkenes , 17 alkanes, and 8 fatty acids. Dried Cordyceps militaris had unique sweet aroma of sesame as wella s a milky flavor. Green or fruit flavor were rarely detected . In alkanes , 10 cosanes, component fo wax were present. Typical flavor components of alkanes such as $\beta$-caryophyllen and Δ-cadinene were also detected. Fatty acids of dried Cordyceps militaris ranged from myristic acid (14 :0) to linoleic acid (18 ; 2). The sweet aroma of dried Cordyceps militaris was mostly due to pryazines, dithaiazines, and furans. Two dithaizines were identified and characteristics of these flavor components was a roasted bacon flavor. Strong antibacterial acitivity was observed toward Vibrio spp. such as V. vulnificus, V.cholerae, V. parahaemlyticus. Relatively high antibacterial acitivity was shown toward Bacillus subtilis , B,cereus, Staphyllococcus aureus, and Corynebacterium xerosis.

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