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בירור הרכב החומרים מונעי החמצון בחלקים שונים של

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Presentation on theme: "בירור הרכב החומרים מונעי החמצון בחלקים שונים של"— Presentation transcript:

1 בירור הרכב החומרים מונעי החמצון בחלקים שונים של
Migal, Kiryat Shmona בירור הרכב החומרים מונעי החמצון בחלקים שונים של פרי הרימון ע"י סריקה של 29 זני רימונים שונים יום עיון למגדלי רימונים, מכון וולקני, פברואר 2008 מוקדש לזכרו של משה זמירי ז"ל

2 Atherosclerosis lesion
development Thrombus formation Carotid Intima-Media Thickness Percent of mortality In western countries OTHERS 25% CHD 54% CANCER 21%

3 pomegranate juice has been shown to:
Recent biological studies have been proven that certain compounds in the pomegranate juice has been shown to: Reduce blood pressure; Reduce LDL oxidation; Reduce the atherosclerosis formation Moreover: consumption of pomegranate juice can lead to reduction of the atherosclerosis lesion Prof. Miki Aviram

4 * * Pomegranate Juice Consumption by Healthy
Volunteers Reduces LDL Oxidation A. 30 * * 20 (nmol TBARS/ mg LDL protein) Copper Ion-Induced LDL Oxidation 10 1 2 Time (weeks)

5 Carotid IMT (mm) A. Control B. Pomegranate Juice Baseline After 1 year
Pomegranate Juice Consumption by Patients with Carotid Artery Stenosis Reduces Carotid Intima-Media Thickness (IMT) 1 2 3 4 A. Control B. Pomegranate Juice Baseline After 1 year Carotid IMT (mm)

6 These activities are attributed to the Pomegranate high levels of antioxidant activity and its high total polyphenol content Total polyphenols content of several fruit juices

7 Most of the data derived from one pomegranate cultivar called ‘wonderful’

8 To compare the levels of antioxidants,
Our main objectives: To compare the levels of antioxidants, total polyphenols, anthocyanins and four major hydrolysable tannins in 29 pomegranate cultivars. 2. To verify where the bioactive compounds are localize in the fruits (arils, lamellas, seeds, peels), and examine their chemical nature and their antioxidant activity. P.G P.S. 21 PG128-29 C13

9 2006 - PG 100-1 PG 101-2 PG 102-3 PG 103-4 PG 104-5 PG 105-6 PG 106-7
A17 C13 C14 C133 ERS PS21 PS23 XBS Camel 2006

10 Two different juices and two different homogenates were pretreated from each cultivar:
1. Arils juice 2. Juice prepare by Juice extractor 3. Homogenate prepared from the whole fruit 4. Homogenate prepared from the peels

11 Antioxidant activity, total polyphenols, total anthocyanins,
*10^3 (mg/L) capacity 1 2 Antioxidant activity Antioxidant activity, total polyphenols, total anthocyanins, and the level of hydrolysable tannins in aril juices Polyphenols *10^3 (mg/L) Total R2 = 0.76** Total polyphenols 1 2 R2 = 0.46** Total anthocyanins anthocyanins *10^2 (mg/L) Total 1 2 3 R2 = 0.03 Punicalagin *10^2 (mg/L) m/z 1083 0.7 1.4 Punicalin m/z 781 (mg/L) 2 4 6 8 R2 = 0.00 Gallagic acid *10 (mg/L) m/z 601 1 3 R2 = 0.01 Ellagic acid PG PG PG PG PG PG 104-5 PG 101-2 PG 105-6 PG 100-1 PG 106-7 PG PG PG PG PG PG PG 102-3 PG PG PG 108-9 PG PG 103-4 Eve Orange PG PG PG PG PG ** significant by Pirson test, α=0.01

12 organic acids in the aril juices
No positive correlation was found between the acid level and the content of organic acids in the aril juices Acid level 1 2 acid level (%) R2 = 0.08 2 3 4 pH level R2 = 0.07 Citric acid level 1 2 Citric acid level (%) R2 = 0.05 Obtained by HPLC Ascorbic acid level Ascorbic acid level (mg/L) R2 = 0.00 4 8 12 16 20 Acetic acid level 0.2 0.4 0.6 0.8 Acetic acid level (%) R2 = 0.48** PG 130 - 31 127 28 116 17 109 10 128 29 104 5 101 2 105 6 100 1 106 7 121 22 ERS Camel 118 19 114 15 112 13 102 3 123 24 120 21 108 9 119 20 103 4 C 133 A PS 23 14 XBS ** significant by Pirson test, α=0.01

13 Positive correlation was found between the TSS and the content of
Glucose and fructose in the aril juices Antioxidant capacity (mM) 2 4 6 8 10 Antioxidant contents %TSS 14 15 16 17 18 TSS (%) R2 = 0.68** 13 Glucose level 4 5 6 Glucose level (%) R2 = 0.58** Obtained by HPLC Fructose level 4 5 6 Fructose level (%) R2 = 0.58** PG 130 - 31 127 28 116 17 109 10 128 29 104 5 101 2 105 6 100 1 106 7 121 22 ERS Camel 118 19 114 15 112 13 102 3 123 24 120 21 108 9 119 20 103 4 C 133 A PS 23 14 XBS ** significant by Pirson test, α=0.01

14 ~ Antioxidant activity, total polyphenols, total anthocyanins,
and the inhibitory effect on LDL oxidation in juices prepared by juice extractor Antioxidant *10^4 (mg/L) capacity Polyphenols *10^3 (mg/L) Total LDL Oxidation Inhibition *10 (%) 2 4 6 8 LDL oxidation inhibition Lipid peroxides, R2 = 0.71** TBARS, R2 = 0.69** Total polyphenol R2 = 0.61** 0.5 1 Antioxidant activity Total anthocyanin 3 Anthocyanin *10^2 (mg/L) Pigment R2 = 0.00 Gallagic acid m/z 601 (mg/L) R2 = 0.64** 4 8 36 40 *10^2 (mg/L) Punicalin m/z 781 R2 = 0.58** 2 6 Punicalagin m/z 1083 R2 = 0.63** 18 20 5 10 15 Ellagic Acid R2 = 0.68** m/z 301 ~ The antioxidant was increased by 5 fold compare to juice prepared only from arils PG PG PG PG PG PG PG 106-7 PG 100-1 PG 103-4 PG PG PG Orange PG PG PG PG PG PG 102-3 PG 108-9 PG PG Eve ** significant by Pirson test, α=0.01

15 and the inhibitory effect on LDL oxidation in homogenates
Antioxidant *10^4 (mg/L) capacity Orange Polyphenols Total Anthocyanin *10^2 (mg/L) Pigment 1 2 3 4 5 6 Antioxidant activity Total polyphenol R2 = 0.90** 0.5 Total Anthocyanin R2 = 0.05 Antioxidant activity, total polyphenols, total anthocyanins, and the inhibitory effect on LDL oxidation in homogenates prepared from the whole fruit Punicalagin 1 2 3 *10^4 (mg/L) m/z 1083 Ellagic Acid 4 *10^2 (mg/L) m/z 301 Punicalin 0.6 1.2 m/z 781 Gallagic acid *10^3 (mg/L) m/z 601 6 8 R2 = 0.79** R2 = 0.44** R2 = 0.54** R2 = 0.55** The antioxidant was increased by 20 fold compare to juice prepared only from arils PG PG PG 104-5 PG PG PG 102-3 PG PG PG PG PG 100-1 PG PG 106-7 PG PG 101-2 PG 108-9 PG PG 103-4 PG PG PG PG PG 105-6 PG PG PG Eve PG PJ ** significant by Pirson test, α=0.01

16 and the inhibitory effect on LDL oxidation in homogenates
Antioxidant *10^5 (mg/L) capacity Polyphenols *10^4 (mg/L) Total Anthocyanin *10^2 (mg/L) Pigment Total anthocyanin R2 = 0.01 0.5 1 Antioxidant activity Total Polyphenol R2 = 0.91** 1.5 2 4 6 8 Antioxidant activity, total polyphenols, total anthocyanins, and the inhibitory effect on LDL oxidation in homogenates prepared from the peels The antioxidant was increased by 40 fold compare to juice prepared only from arils Punicalagin *10^5 (mg/L) m/z 1083 Ellagic Acid 2 4 6 8 *10^2 (mg/L) m/z 301 Punicalin 1 *10^4 (mg/L) m/z 781 Gallagic acid *10^3 (mg/L) m/z 601 3 R2 = 0.39** R2 = 0.72** R2 = 0.49** R2 = 0.89** PG 106-7 PG PG PG 102-3 PG PG PG 101-2 PG PG 100-1 PG PG PG PG PG PG 108-9 PG PG 105-6 Orange PG PG PG PG 104-5 PG 103-4 PG PG PG Eve PG PG ** significant by Pirson test, α=0.01

17 The antioxidant level is not correlated to the % of the peels from the fruits
Antioxidant contents 1 2 3 4 Antioxidant *10^2 (mM) capacity R2 = 0.01 Fruit weight 2 4 6 *10^2 (gr) R2 = 0.01 Peel weight 1 2 3 *10^2 (gr) R2 = 0.06 Aril weight 1 2 3 4 *10^2 (gr) PG 106 - 7 114 15 123 24 102 3 PS 21 121 22 101 2 128 29 100 1 127 28 109 10 116 17 120 119 20 108 9 XBS 105 6 A ERS 130 31 112 13 104 5 103 4 23 C PG Eve 118 19 PG

18 Summary In arils juice- the antioxidant activity appear to be related to polyphenols and anthocyanins. This is accordance with other data demonstrated that in colored figs, apple, peaches and grapes the antioxidant level is significantly higher then in green fruits. 2. In homogenate prepared from the whole fruit, the level of the antioxidant increased by 20-fold suggested that the peels contributed significantly to antioxidant activity. 3. The predominant type of polyphenolic compounds extracted from the peels are the hydrosalbe tannins, composed mainly from punicalagin isomers, punicalin, gallagic acid and ellagic acid.

19 The study enlarge our knowledge about the natural variation of the antioxidant
content and the compounds that give this activity. It also identify the location and concentration of some phytochemical that have antioxidant activity in pomegranate fruits. In the future, such information will enable breeders to select and breed genotypes having higher levels of health beneficial compounds and also provide useful information for addressing consumer choices for healthier products

20 Students Migal, Kiryat Shmona
Revital Zulker Ira Glazer Elinor Shwarzt Collaborators: Dr. Doron Holland, Newe Ya’ar Research Center Prof. Miki Aviram, Technion, Faculty of Medicine, Haifa Dr. Hamutal Borochov, Mop Arava, Eilat Dr. Igal Bar-Ilan, Migal, Kiryat Shmona Prof. Ruth Ben-Arie, The fruit storage laboratory, Kiryat Shmona

21 תודה על ההקשבה

22 רמת האנטיאוקסידנטיות במיצים מסחריים
Antioxidant capacity (mM) 10 20 30 40 50 60 70 80 NF D 2 PJ 4 U 71 spring H M Total Polyphenols (mM) רמת הפוליפנולים במיצים מסחריים 6 8 NF – נטוראפוד מיץ אורגני מסחרי D2 מיץ רימונים נסחט במסחטה PJ מיץ מיקי מהול לשתייה M- תרכיז רימונים ממולי 71- מיץ טרי מגרגירים בלבד H- כנ"ל יין רימונים- יקב דלתון מיץ טבעי- מעמוס

23

24 Multiple Reaction Monitoring (MRM)
The identity of the hydrolysable-tannins obtained by using Multiple Reaction Monitoring (MRM) method of LC-MS-MS, according to their mother and daughter ions. Multiple Reaction Monitoring (MRM) The Mother ion was fragmented by argon using different collision energies to daughter ions. The level of the typical daughter ion was then measured. Q1 Single Ion m/z Q2 Collision Q3 Single daughter Ion m/z


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