| 15 Detemination of Sweeting Agents in Dried Ume Products by HPLC |
| Kayo HAGINO, Hiroko MATSUMOTO, Narue SAKAMAKI, Mitsuo NAKAZATO, Kazuo YASUDA |
| cyclamate,dulcin,alitame,aspartame,saccharin,acesulfame K,sucralose,stevioside,rebaudioside A,glycyrrhizic acid,dried ume product |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,73-77,2002 |
| |
| 16 Hygienic Studies on Imported Soy Sauce: Contents of Food Additives |
| Yukiko YAMAJIMA, Nobuo TAGUCHI, Chigusa KOBAYASHI, Hiroyuki MIYAKAWA, Kazuo SAITO |
| soy sauce, seasoning, food additives, preservative, sweetener |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,78-82,2002 |
| |
| 17 Study on Clean-up for Determination of Flusulfamide in Agricultual Products |
| Kyoko KITAYAMA, Toshihiro NAGAYAMA, Ichiro TAKANO, Maki KOBAYASHI, Sanae TOMIZAWA, Yasuhiro TAMURA, Yukinari TATEISHI, Naoko KIMURA, Kazuo SAITO |
| A simplified determination of flusulfamide in agricultural products by HPLC with a UV detector was investigated. The sample was homogenized with acetone followed by extraction with ethyl acetate, and the extract was cleaned up with a Silica gel column, Bond ElutR extraction cartridge SAX and PSA. The choice of the silica gel column eluant was important. Using silica gel from Nacalai Tesque Co., flusulfamide was eluted with acetone-n-hexane at 1:4, and using slica gel from Wako Co. or Merck Co., flusulfamide was eluted with acetone-n-hexane at 2:3. The recovery of flulsulfamide in 6 kinds of agricultural products at the level of 0.01μg/g was 58.3～131.2 % . |
| flusulfamide, agricultural products, HPLC, UV detector |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,83-86,2002 |
| |
| 18 Dietary Daily Intake of Dioxins by Total Diet Studies in Metropolitan Tokyo Area |
| Fusao USHIO, Norihisa KIKUTANI, Yuki SAITOH, Jun-ichi NAKAGAWA, Masao IGUCHI, Kimio MONMA, Yohko MATSUSHIMA, Tadahiko UETA |
Studies on the dietary intake of dioxins (PCDDs/DFs + Co-planar PCBs) through foods in the
Tokyo metropolitan area was carried out from 1999 to 2001, by the total diet-market basket method on the basis of the Japan Nutrition Survey. The daily intake of toxic equivalency for an adult weighing 50kg were 2.18 pgTEQ/kg b.w./day in 1999, 1.87 pgTEQ/kg b.w./day in 2000 and 1.25 pgTEQ/kg b.w./day in 2001. These dietary intakes were considerably below the maximum tolerable daily intake (TDI) of 4 pgTEQ/kg b.w./day for dioxins. These results clearly showed a decreasing trend during the study period. In addition, more than 50 percent of the intake of dioxins was taken daily through fish and shellfish group. |
| dioxins, PCDDs, PCDFs, Co-PCBs, dietary daily intake, total diet study |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,87-94,2002 |
| |
| 19 Determination of Volatile Basic Nitrogen(VBN)and Non Volatile Amines in Fish Sause |
| Mitsuo NAKAZATO, Chigusa KOBAYASHI, Yukiko YAMAJIMA, Yukinari TATEISHI, Yuka KAWAI, Kazuo YASUDA |
| fish sauce, seasoning, volatile basic nitrogen, non volatile amine, histamine, tyramine, cadaverine, putrescine, tryptamine, phenethylamine |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,95-100,2002 |
| |
| 20 Survey of Chemical Substances in Health Foods
－Agaricus － |
| Setsuko TABATA，Hiroyuki MIYAKAWA, Yukiko YAMAJIMA，Kimiko
KAN，Toshihiro NAGAYAMA，Yuki SADAMASU，Toshiko SHIMOI and Kazuo SAITO |
| Chemical substances in 11 samples of agaricus, which is advocated for improving immunity and is efficacious against cancer, were investigated. Fungiside, radioactivity, mycotoxin and pesticide residues were less than the detection limits. Most samples contained less than 10 ppm of bromide, except for the samples containing 28 and 120 ppm of bromide. This finding suggested that the samples were fumigated with methyl bromide. Ten out of 11 samples contained over 1 mg/g of cadmium, and among them, 4 samples contained a high concentration of cadmium, about 10 µg/g. Considering the amount of intake, the effect of cadmium in agaricus on human health seemed to be negligible. g-aminobutylic acid, which is considered to promote blood circulation in the brain, was present in the range of 3,600-13,000 µg/g in agaricus. |
| agaricus, health food, fungicides, heavy metals, cadmium, radioactivity, mycotoxins, pesticide residues, bromide, g-aminobutylic acid |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,101-107,2002 |
| |
| 21 Analysis of Stevia Glycosides in Stevia Products of Natural Sweetening and Evaluation of their Chemical Quality |
| Thin layer chromatography and HPLC methods were used to examine stevia extract, powdered stevia and α-glucosyltransferasetreated stevia in stevia products of natural sweetening , and four stevia glycosides in these products were analyzed by HPLC. Contents of total glycosides in all (10) stevia extract products were more than 80 %. Rebaudioside A only was detected in two products in proportions of more than 90 %. The total glycosides content in one powdered stevia product was 13.6 %. Unreacted glycosides in three α-glucosyltransferasetreated stevia products were 2.8-4.9 % . The quality of these products was evaluated including the results of heavy metals testing and no food additive products of concern were found. |
| stevia extract,powdered stevia,α-Glucosyltransferasetreated stevia,stevioside,rebaudioside A,TLC, HPLC,heavy metal |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,108-112,2002 |
| |
| 22 Survey of Pesticide Residues in Domestic Vegetables and Fruits (2001.4-2002.3) |
| Ichiro TAKANO, Toshihiro NAGAYAMA, Maki KOBAYASHI, Yasuhiro TAMURA, Sanae TOMIZAWA, Yukinari TATEISHI, Naoko KIMURA, Kyoko KITAYAMA, Kazuo SAITO |
| Pesticide residues were investigated in 8 of 38 kinds of domestic vegetables and 3 of 25 kinds of domestic fruits on the Tokyo market in 2001. Thirty kinds of pesticides such as organophosphorines(EPN,etc.), organochlorines(endsulfans, etc.), carbamate (methomyl), organonitrogens(dichrofluanid, etc.), pyrethroids(acrinathrin, etc.) and others(including chlorfenapyr) were detected in 7 of 26 kinds of domestic vegetables (detection rate : 68%). Their concentrations were between tr. (below 0.01 ppm) and 0.93 ppm. There was a spinach sample in which the total level of disulfotone and its derivative, disulfotone sulfon, was higher than the maximum limit in the standards for withholding registration of pesticides. Eighteen kinds of pesticides were detected in 3 of 15 kinds of domestic fruits(detection rate : 60%). Their concentrations were between tr. and 4.2 ppm. There was a strawberry in which the level of acrinathrin was higher than that of the tolerance for pesticide residues in Japan. |
| pesticide residues, domestic agriculutural products, vegetables, fruits, organophosphorus pesticides, organochlorine pesticides, carbamate pesticidesorganonitrogen pesticides, pyrethroid pesticides, insecticides, fungicides |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,113-118,2002 |
| |
| 23 Survey of Pesticide Residues in Imported Crops (Organophosphorus and organonitrogen pesticides) -Apr.2001 - Mar.2002- |
| Sanae TOMIZAWA, Toshihiro NAGAYAMA, Ichiro TAKANO, Maki KOBAYASHI, Yasuhiro TAMURA, Yukinari TATEISHI, Naoko KIMURA, Kyoko KITAYAMA, Kazuo SAITO＊ |
| Organophosphorus and organonitrogen pesticide residues in 235 imported crops were investigated. In 19 types of crops, residues of 13 organophosphorus insecticides and 7 organonitrogen fungicides and 1 organonitrogen herbicide were detected. Concentrations of organophosphorus insecticides (chlorpyrifos, ethion, malathion, etc.) ranged between trace(under 0.01) and 0.56 ppm in 45 crops. Concentrations of organonitrogen fungicides (bitertanol, triadimefon, etc.) and herbicide (simazine) were trace-0.89 ppm in 13 crops. Residues of these pesticides were at levels lower than the tolerance for pesticide residues, the CODEX maximum residue limits for pesticides or the tolerance in each country except acephate(0.31 ppm, chinese peas produced in China)and simazine (0.89 ppm, lemons produced in USA). |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,119-124,2002 |
| |
| 24 Survey of Pesticide Residues in Imported Crops (Organochlorine, N-methyl carbamate and the other pesticides) 2001.4 - 2002.3 |
| Maki KOBAYASHI, Toshihiro NAGAYAMA, Ichiro TAKANO, Yasuhiro TAMURA, Sanae TOMIZAWA, Yukinari TATEISHI, Naoko KIMURA, Kyoko KITAYAMA and Kazuo SAITO |
| Pesticide residues in 235 imported crops were investigated from April 2001 to March 2002. Residues of organochlorine pesticides, 5 insecticides and 3 fungicides were detected between trace(below 0.01 ppm) and 0.18 ppm. As for carbamate pesticides, 2 insecticides of carbamate were detected between 0.12 and 2.1 ppm. In the others, 7 insecticides, 3 fungicides, one herbicide and one synergist were detected at levels between trace and 4.5 ppm. The level of Cypermethrin in Chinese peas was higher than the tolerance for pesticide residues. It is considered that this residual Cypermethrin level is not so high as to influence one's health immediately. As for the pesticides detected in imported crops, there was scarcely any difference among the 5 regions (America, Asia, Oceania, Europe and Africa). Differences based on the type of imported crop was recognized, however. |
| pesticide residues, imported crops, organochlorine pesticides, carbamate pesticides, pyrethroid pesticides, insecticides, fungicides, herbicides, postharvest application |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,125-130,2002 |
| |
| 25 Radioactive Contamination in Imported Foods(ⅩⅠ) |
| Kimiko KAN,Hirofumi USHIYAMA,Tetsuya SHINDO,Kazuo SAITO |
| Chernobyl reactor accident,radioactive contamination，imported foods,survey,cesium,mushroom,haney,NaI(Tl)scintillation detector |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,131-135,2002 |
| |
| 26 Sample Preparation for Determination of Steroid Hormones in Beef by Radioimmunoassay |
| Tsuneo HASHIMOTO, Katsuhiko JIMBO and Tomoyuki MIYAZAKI |
| beef，steroid hormones，estradiol-17b，testosterone，radioimmunoassay(RIA)，solid phase extraction cartridge，endocrine disrupting chemicals
|
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,136-138,2002 |
| |
| 27 Case Studies on Complaints against Food -Apr.2001-Mar.2002- |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,139-143,2002 |
| |
| 28 Outbreaks of Food Poisoning by Chemical and Naturally Occurring Toxicants in Tokyo (ⅩⅨ):2001 |
| Hirofumi USHIYAMA, Kimiko KAN, Tetsuya SHINDO, Kazuo SAITO |
| chemical food poisoning, pufferfish, Fugu vermicularis porphyreus, Fugu poecilonotus, histamine, benzalkonium chloride, copper, tetramine |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,144-148,2002 |
| |
| 29 The Case with Detection of Paralytic Shellfish Poison Detection in a Purplish Washington Clam (Saxidomus Purpuratus) imported from China |
| Takeo SASAMOTO, Shozo HORII, Keiko USHIYAMA, TuneoHASHIMOTO, Kyoko IGUSA, Naoki SAGI, Yumiko YAMAKI,Masako HIROKADO and Katsuhiko JINBO |
purplish washington clam (Saxidomus Purpuratus),
China, bivalves, paralytic shellfish poison(PSP),
mouse unit, saxitoxin(STX), gonyautoxin(GTX) |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,149-152,2002 |
| |
| 30 A Case Study on Detection of Patent Blue V used in Fruit Jelly |
| Tsutomu Ogiwara, Yoko Aoyagi, Eiko Amakawa , Kazuo Yasuda |
| patent blue V, fruit jelly, undesignated food color |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,153-156,2002 |
| |
| 31 A Case Study on Detection and Confirmation of OrangeⅡand Amido Black 10B in Imported Dry Ume Products |
| Toshiharu MATSUDA，Hiroko MATSUMOTO，Yoko KASUYA，Mitsuo NAKAZATO ， Kazuo YASUDA |
| dry ume，artificial color，orangeⅡ， amido black 10B |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,157-160,2002 |
| |
| 32 Contents of Heavy Metals and Arsenic in Natural Food Additives (2) |
| Tetsuko YASUNO, Teruhiko HAGIWARA, Junichiro KABASHIMA, Nahoko HANEISHI, Rie ARAKI, Keiko HIRATA, Kumi SUZUKI, Kunihiro KAMATA |
| heavy metal, lead, cadmium, chromium, mercury, arsenic, natural food additive |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,161-164,2002 |
| |
| 33 Measurment of b-Glucan in Mannentake Extract, Himematsutake Extract and Agaricus Product by Dietary Fiber Measuring Method and Specific Reagent for Detection of
b-Glucan |
| Kumi SUZUKI, Yoko UEMATSU, Keiko HIRATA, Kenji IIDA, Kunihiro KAMATA |
| mannentake extract, himematsutake extract, agaricus blazei, b-glucan, dietary fiber, existing food additives |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,165-168,2002 |
| |
| 34 Survey on Quality of Existing Food Additives Used as Ingredients of Health Food (Tomato Color, Anthocyanin Colors, Psyllium Seed Gum) |
| Kumi SUZUKI, Keiko HIRATA, Yoko UEMATSU, Kenji IIDA, Kunihiro KAMATA |
| existing food additives, tomato color, anthocyanin color, purple yam color, purple corn color, purple sweet potato color, psyllium seed gum, quality |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,169-172,2002 |
| |
| 35 Bacteriological survey of Row Oysters (1989.4-2002.3) |
| Keiko MORIMOTO, Machiko JIN, Takeshi ISIKAMI, Yumi TAKAHASHI and Kazuyoshi YANO |
| oyster, standard plate count bacteria, E.coli, V.parahaemolyticus, Staphylococcus aureus, Salmonella, Bacillus cereus，microbiological quality |
| Ann.Rep.Tokyo Metr.Res.Lab.P.H., 53,173-175,2002 |