14 Determination of Cyclamate in Foods by GC and GC/MS
|
| Chigusa KOBAYSHI, Mitsuo
NAKAZATO, Yukiko YAMAJIMA, Nobuo TAGUCHI, Kazuo YASUDA and Shuzo OGINO |
| cyclamate, GC, GC/MS, imported
food |
| Ann.Rep.Tokyo Metr.Inst.P.H.,
55,97-100,2004 |
|
| 15 Determination of Preservatives in Foods by Direct Extraction
|
| Michiko MIYAKODA, Yoko YAMADA, Eiko AMAKAWA and Kazuo YASUDA |
| preservatives, benzoic acid, dehydroacetic acid, salicylic acid, esters of p-hydroxy benzoic acid, direct extraction, HPLC |
| Ann.Rep.Tokyo Metr.Inst.P.H., 54,101-106,2004 |
|
| 16 Detemination of Sudan I and its Homologues in Chilli Products
|
| Mitsuo NAKAZATO, Yoko KASUYA, Hiroko MATSUMOTO and Kazuo YASUDA |
| A method for the simultaneous determination of 5 oil-soluble phenylazo colors, namely, sudan I, sudan II, sudan III, sudan orange G and sudan red G, in chilli products such as ground chilli, chilli powder, chilli sauce, pasta sauce, tom yum paste, curry roux by HPLC was developed. The 5 colors in the sample were extracted with ethanol. The colors were separated on a Capcell Pak C18 column with a mobile phase of acetonitrile - water (85 : 15) and monitored at 480 nm. The recovery of 5 colors added to various kinds of chilli products was 72.2–105%. The determination limits of these colors were 5.0–10 µg/g in the samples. |
| Sudan I, Sudan II, Sudan III, Sudan red G, Sudan orange G, chilli, chilli products |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,107-110,2004 |
|
| 17 Improvement Using Capirally GC on Plastic Test of Volatile Substances, Caprolactam and Methylmethacrylate
|
| Reiko KANEKO, Keiichi FUNAYAMA, Nahoko HANEISHI and Shuzo OGINO |
| volatile substance, styrene, caprolactam, methylmethacrylate, polystyrene, nylon, polymethylmethacrylate, plastic, equipment, package |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,111-115,2004 |
|
| 18 Study on the Tendency
of Dissolution of Fungicides from Splittable Wood Chopsticks
|
| Keiichi FUNAYAMA, Reiko KANEKO, Nahoko HANEISHI and Shuzo OGINO |
| splittable wood chopsticks, fungicide, imazalil, o-phenylphenol, thiabendazole, diphenyl, dissolution |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,117-122,2004 |
|
| 19 The Quantitative
Analysis of 8 Organonitrogen Pesticides (Oxadixyl etc.) in Agricultual
Products by Using the Examination Method Shown in Japanese Food Sanitation Law
|
| Yasuhiro TAMURA, Ichiro TAKANO,
Maki KOBAYASHI, Sanae TOMIZAWA, Yukinari TATEISI, Naoko SAKAI, Kyoko KAMIJO, Toshihiro NAGAYAMA and Kunihiro KAMATA |
| An analytical method for 8 pesticides (benalaxyl, carfentrazone-ethyl, fenbuconazole, fenothiocarb, fluacrypyrim, metalaxyl, oxadixyl and tolfenpyrad) in agricultural products has been developed by modifying the examination method shown in the Japanese Food Sanitation Law. The sample (grain, beans, vegetable or fruit) was homogenized with acetone followed by extraction with ethyl acetate, and was evaporated. In the case of grain or beans, fat or oil was removed from the extract with n-hexane·acetonitrile partitioning. Then the extract was purified by Florisil column (Silica gel column in case of oxadixyl) chromatography and analyzed by using GC-FTD. Recoveries of 8 pesticides spiked in all crops (apple, lemon, rice, spinach, tomato) at the 0.1 ppm level were ranged from 61.7 to 106.1%. The detection limit of each pesticides was 0.01 ppm. |
| organonitrogen pesticides, agricultural products, gas chromatograph-flame thermionic detector (GC-FTD), examination method shown in Japanese Food Sanitation Low |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,123-126,2004 |
|
| 20 Analysis of Allergic
Substances (Buckwheat) in Processed Foods
|
| Hiroko MATSUMOTO, Kayo HAGINO, Narue SAKAMAKI, Mitsuo NAKAZATO and Kazuo YASUDA |
| buckwheat, allergy, allergic substances, ELISA method, PCR, PCR test |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,127-132,2004 |
|
| 21 Food Bacteriology Assessment of Fresh Vegetables on the Market in Tokyo
|
| Teruyoshi ARAI, Yoko IKEUCHI, Mikiyoshi SHIBATA, Keiko YOKOYAMA, Maho KAWAMURA, Masaki TAKAHASHI, Tomoaki WAUKE, Yoshitoki YANAGAWA, Akemi KAI, Kazuyoshi YANO and Satoshi MOROZUMI |
| Outbreaks of bacterial food poisoning caused by enterohaemorrhagic Escherichia coli O157 and Salmonella associated with fresh vegetables are reported. So, authors studied the contamination by these entero-pathogenic organisms and fecal Escherichia coli as an indicator of contamination of feces of human or animals for 814 fresh vegetables on the market in Tokyo, from 2000 to 2002. The result were as follows: A welsh onion and a packaged beansprout were contaminated by Listeria monocytogenes. And also, 3% of fruit vegetables and 17% of beansprouts were proved to be contaminated by fecal Escherichia coli. |
| fresh vegetables, organic culture, standard plate count, fecal Escherichia coli, Lysteria monocytogenes |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,133-137,2004 |
|
| 22 Results of Bacteriological Survey for Commercial Foods (1993.4 - 2002.3)
|
| Machiko JIN, Keiko MORIMOTO, Yumi TAKAHASHI, Kinuyo HATTORI, Shigeru MATSUSHITA and Yasuko YOSHIDA |
| commercial foods, standard plate count, coliforms, E.coli, S.aureus |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,139-144,2004 |
|
| 23 Survey of Amoebae Contamination in Foods (2000.4–2004.3）
|
| Takeshi ISHIKAMI, Kumiko KUSUNOKI, Mie IWAYA, Yumi TAKAHASHI, Keiko MORIMOTO, Machiko JIN, Kazuyoshi
YANO and Yasuko YOSHIDA |
| amoebae, standard plate count, coliforms, tofu, raw oyster, konjaku, pickles |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,145-148,2004 |
|
| 24 Survey of Metagonimus yokogawai Metacercariae Infection in Salangichthys microdon (Shirauo) of Ibaraki Prefecture during 1998-2002 –Salangichthys microdon (Shirauo) of Kasumigaura–
|
| Rie MURATA, Jun SUZUKI and Yoshitoki YANAGAWA |
| Metagonimus yokogawai, metacercaria, Salangichthys microdon, Kasumigaura |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,149-152,2004 |
|
| 25 Contents of 4 Elements, Volatile Basic Nitrogen and Non Volatile Amines in Imported Soy Sauce
|
| Yukiko YAMAJIMA, Nobuo TAGUCHI, Chigusa KOBAYASHI, Hiroyuki MIYAKAWA and Shuzo OGINO |
| soy sauce, seasoning, arsenic, copper, cadmium, lead, volatile basic nitrogen, non volatile-amine, histamine, tyramine |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,153-155,2004 |
|
| 26 Determination of Bisphenol A in Total Diet Study Samples by GC/MS |
| Hiroyuki MIYAKAWA, Yasuhiro
SHIMAMURA, Keiko SUZUKI, Akihiro IBE and Kazuo SAITO
|
| A method for the determination of bisphenol A (4,4-iso-propylidene diphenol) in total diet study samples by GC/MS was developed, and bisphenol A was determined in these samples. In case of low protein samples, bisphenol A was extracted with acetonitrile from samples, and the extract was defatted, then cleaned up on a GL-Pak PLS-2 cartridge and a Sep-Pak NH2 cartridge. After that, bisphenol A was derivatized with BSTFA and determined by GC/MS. In case of high protein samples, bisphenol A was extracted with acetone, and the extract was defatted, concentrated, then water was added and re-extracted with diethyl ether. The diethyl ether extract was cleaned up on a GL-Pak PLS-2 cartridge, after that, handled as above. The detection limit was 1.0 ng/g. Each thirteen group of adult type and child type of total diet study samples was analyzed by this method, as a result, 2.9 ng/g of bisphenol A was detected from the sugar and confectionery group of adult type samples, and 2.0 ng/g of bisphenol A was detected from same group of child type samples. Daily dietary intakes of bisphenol A estimated by this results were lower than 0.1 percent of provisional tolerable daily intake proposed by Scientific Committee on Food, EU. |
| bisphenol A, daily intake, GC/MS |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,157-161,2004 |
|
| 27 Mineral Contents in Japanese Seaweeds
|
| Yoko MATSUSHIMA, Masao IGUCHI, Norihisa KIKUTANI and Kazuo SAITO |
| The contents of 8 minerals (Na, K, Ca, Mg, P, Zn, Fe, Cu) and 6 essential trace elements (Mn, Mo, V, Co, Ni, Cr) in Japanese dried seaweeds for food were analyzed by inductivily coupled plasma (ICP) atomic emission spectrometry. The seaweeds samples, Hijiki, Kombu, Wakame and Green laver, were collected from markets in Tokyo. Analytical results for Fe and Zn in 7 Hijiki samples showed a wide range of variation of 8.0 - 88.0 mg/100g (CV 89.7%), 0.5 - 3.9 mg/100g (CV 106.1%), respectively. The results for minerals were compared with the values described in the Standard Table of Food Composition in Japan, fifth edition (Standard Table). Notable differences between the mean values obtained by analysis and the values described in Standard Table were observed for Ca in Mitsuishi-kombu, Wakame and Green laver, for K, Mg in Green laver and for P in Mitsuishi-kombu, Wakame. In all the samples, the mean values obtained by analysis for Fe were lower than the values described in Standard Table. |
| minerals, lifestyle-related diseases, elements, seaweeds, Hijiki, Kombu, Wakame, Green laver, inductivily coupled plasma atomic emission spectrometry, standards for nutrition labeling |
| Ann.Rep.Tokyo Metr.Inst.P.H., 545163-167,2004 |
|
| 28 Contents of Cadmium in Brown Rice and Soybean Carried in Tokyo
|
| Takashi AMEMIYA, Kazuko MIZUISHI, Yasushi ONO and Koichi ITO |
| brown rice, soybean, cadmium, contents, atomic absorption spectrophtometry |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,169-171,2004 |
|
| 29 Digestion of Fish, Shellfish and Unpolished Rice with an Automatic Digestive Device and Cadmium Content
|
| Yasushi ONO, Kazuko MIZUISHI, Teruhiko HAGIWARA, Takashi AMEMIYA and Koichi ITO |
| Digestion using an automatic digestive system proved to be a suitable method for the determination of cadmium (Cd) in fish, shellfish and unpolished rice, with less influence from heating temperature, heating time and amount of acid added. Cd added to the sample was determined satisfactorily. The mean percentage recovery for scallop (adductor muscle) was 95.91 - 101.82% (RSD: 2.19%) and for unpolished rice 94.40 - 100.40% (RSD: 2.32%). The Cd content of meat and internal organs of fish and shellfish was listed. |
| digestion, cadmium, fish and shellfish, unpolished rice |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,173-177,2004 |
|
| 30 Study on Extract Solvents and Stability of Antioxidants in Food Contact Plastics
|
| Nahoko HANEISHI, Tetsuko YASUNO, Reiko KANEKO, Keiichi FUNAYAMA and Shuzo OGINO |
| antioxidant, food contact plastics, extract solvent, stability |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,179-182,2004 |
|
| 31 Outbreaks of Food Poisoning by Chemical and Naturally Occurring Toxicants in Tokyo –2003–
|
| Hirofumi USHIYAMA, Kimiko KAN, Toshiko SHIMOI and Kazuo SAITO |
| chemical food poisoning,
histamine, nicotinic acid, potato, solanine, chaconine, sorbitol |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,183-186,2004 |
|
| 32 Case Studies on Complaints against Food - Apr. 2003 - Mar. 2004 -
|
| Keisuke KIMURA, Setsuko TABATA, Jin SUZUKI, Kenji IIDA and Kazuo SAITO |
| food, complaint, foreign substance, canned food, soybean, corn, yogurt, artifical tooth |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,187-192,2004 |
|
| 33 Some Consumer Complaints Related to Food Products in Tama Area Tokyo (III)
|
| Yoko KASUYA, Hiroko MATUMOYTO, Tosiharu MATSUDA, Mitsuo NAKAZATO, Shigeru MATSUSITA, Tomoaki WAUKE, Hiroshi HUJIKAWA and Kazuo YASUDA |
| food-related complain, foreign substance, discoloration of food, degeneration of food, pull-top can, dextran, lactic acid bacteria, filamentous fungus, amino-carbonyl reaction, tomatine |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,193-197,2004 |
|
| 34 Radioactive Contamination in Imported Foods –2003.4 - 2004.3–
|
| Kimiko KAN, Hirofumi USHIYAMA, Toshiko SHIMOI and Kazuo SAITO |
| Chernobyl reactor accident, radioactive contamination, imported foods, survey, cesium, mushroom, NaI(Tl) scintillation detector |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,199-202,2004 |
|
| 35 Survey of Pesticide Residues in Imported Crops (Organophosphorus and Organonitrogen Pesticides) (2003.4 - 2004.3)
|
| Kyoko KAMIJO, Ichiro TAKANO, Maki KOBAYASHI, Yasuhiro TAMURA Sanae TOMIZAWA, Yukinari TATEISHI, Naoko SAKAI, Toshihiro NAGAYAMA and Kunihiro KAMATA |
| Organophosphorus and organonitrogen pesticide residues were investigated in 245 imported crops on the Tokyo market in fiscal 2003. In twenty six types of crops, residues of 13 organophosphorus insecticides and 2 organonitrogen fungicides were detected. Concentrations of organophosphorus insecticides (chlorpyrifos, ethion, malathion,etc.) were between a trace and 4.0 ppm in 39 crops and organonitrogen fungicides (triadimenol and myclobutanil) were between 0.04 and 0.10 ppm in 2 crops, respectively. Twelve of the pesticides detected in the 26 types of crops are regulated by tolerances for pesticide residues, established in Japanese Food Sanitation Law. Residues of these pesticides were at levels lower than the tolerances for pesticide residues, the CODEX maximum residue limits for pesticides, and the tolerances established in each country. |
| pesticide residues, imported crops, organophosphorus pesticides, organonitrogen pesticides |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,203-207,2004 |
|
| 36 Survey of Pesticide Residues in Imported Crops (Organochlorine, N-methyl Carbamate and the Other Pesticides) (2003.4 - 2004.3)
|
| Maki KOBAYASHI, Ichiro TAKANO, Yasuhiro TAMURA, Sanae TOMIZAWA, Yukinari TATEISHI, Naoko SAKAI, Kyoko KAMIJO, Toshihiro NAGAYAMA and Kunihiro KAMATA |
| Pesticide residues in 245 imported crops were investigated from April 2003 to March 2004. Residues of organochlorine pesticides, 4 kinds of insecticides (Chlorfenapyr, Total-DDT, Dicofol and Endosulfan) and 4 kinds of fungicides (Captan, Chlorothalonil (TPN), Iprodione and Procymidone) were detected between Trace and 0.70 ppm. As for carbamate pesticides, 1 kinds of insecticide (NAC) and one kind of herbicide (CIPC) were detected between 0.03 and 0.31 ppm. As for the pyrethroid pesticides, 3 kinds of insecticides (Cypermthrin, Fenvalerate and Permethrin) were detected between trace and 2.9 ppm. In the others, 3 kinds of fungicides (Imazalil, 2-Phenylphenol (OPP) and Thiabendazole (TBZ)) and one kind of herbicide (2,4-D) were detected between trace and 2.4 ppm. Residues of these pesticides were at leveles lower than the tolerance for residues in Japan, the tolerance for pesticide residues in origin countries, and the CODEX maximum residues limits for pesticides. |
| pesticide residues, imported crops, organochlorine pesticides, carbamate pesticides, pyrethroid pesticides, insecticides, fungicides, herbicides, postharvest application |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,209-213,2004 |
|
| 37 Survey of Pesticide Residues in Domestic Vegetables and Fruits (2003.4 - 2004.3)
|
| Ichiro TAKANO, Maki KOBAYASHI, Yasuhiro TAMURA, Sanae TOMIZAWA, Yukinari TATEISHI, Naoko SAKAI, Kyoko KAMIJO, Toshihiro NAGAYAMA and Kunihiro KAMATA |
| Pesticide residues in 151 samples of 19 kinds domestic vegetables and fruits on the Tokyo market in fiscal 2003 were investigated. Eighteen kinds of organophosphorous, organochlorine, carbamate, organonitrogen, pyrethroid and other pesticides were detected in 21 samples of 12 kinds of domestic vegetables (detection rate: 25%). Fifteen kinds of pesticides were detected in 17 samples of 11 kinds of ordinary cultivated vegetables (detection rate: 36%), and their concentrations were between tr. (below 0.01 ppm) and 43 ppm. There was a perilla in which chlortalonil (TPN) exceeded the tolerance for pesticide residues in the Japan. Four kinds of pesticides were detected in 4 samples of 4 kinds of domestic vegetables with "indication as JAS organic cultivated" (detection rate: 11%). Their concentrations and detection rate were lower than those of ordinary cultivated ones. Twenty-three kinds of pesticides were detected in 36 samples of 6 kinds of domestic fruits (detection rate: 54%). Their concentrations were between tr. and 0.88 ppm. Residues of these pesticides were at levels lower than the tolerance for pesticide residues in Japan. |
| pesticide residues, domestic
crops, vegetables, fruits, organic agricultural product, organophosphorus pesticides, organochlorine pesticides, carbamate pesticides, organonitrogen pesticides, pyrethroid pesticides |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,215-219,2004 |
|
| 38 Survey of Organochlorine Pesticide Residues in Milk and Cheese
|
| Tsuneo HASHIMOTO, Yumiko YAMAKI, Takeo SASAMOTO, Shozo HORII, Fusao USHIO, Kimitaka TAIRA, Uno TATEYAMA and Kunihiro KAMATA |
| organochlorine pesticides, residues, milk, cheese, endocrine disrupting chemicals, GPC, GC/MS, selected ion monitoring (SIM) |
| Ann.Rep.Tokyo Metr.Inst.P.H., 55,221-223,2004 |