Hasegawa, T.

Itano, A.

Moriya, T.

Tsuji, Y.

Okayama University Scientific Achievement Repository

Influence of Sea-water on the Iodine Contents of Rice， Rice-bran and Wheat. By A. Itano， Y.Tsuji， T.Ha田gawaand T. Moriya. [December 14， 1137.] Previou自lythe chlorinet) contents in自oilsfrom various poin旬 alotlgthe irrigo.tion cano.l which runs from the Tako.ho.shi river加 Kojimo.Bay in thi帽prefeclure were determined， and la.ter the iodine2) contents were exa.Dlined in the 白imila.rsoil随mples. 1n both c幽倒， it w朗 foundth叫もheamount decre帥個師thedistance from the sea incre朗自由 althoughmuch more chlorine w倒 foundtha.n iodine in 0.1 the c品目es. 1n this investigation， the iodine contents of rice o.nd wheo.t grown in the simila.r loca.lities where the soil帥 mpleswere taken in the previous investiga.tions， were determined. Especia11y in c朗自 ofrice，ぬedis仕i-bution of iodine in the poliahed rice and rice-bra.n was investiga.ted. Figure 1. No色e: 企 indicatesthe places where the I!amples we間切ken;もhenumerals∞r陀spondto tho開 no総din the table. 104 A.ITANo， Y. T同IJr，T. HAAF.OAWA anrl T. ]¥ft1RIYA: Experimen句J.Samtles Collecled: Sixteen so.mpl倒 ofeach rice and wheo.t were col1ecωd from different fo.rmers along the inigation canal extending about sixteen kilomete1'B long，仰向hownin Fig. 1. Ten grams of Hamples were taken for the ana.lysis in both c制e自， rice and wheat， and the rice-bran corresponding to t.en gmm自 ofwhole rice were used. The曲.mpleswere subjected加 combustionwithout any pre-tr帥，tment.Resulls: The results o.re prese包もedin To.ble 1. To.ble 1. No. Wholl' Tlce. Wheat. of I叫川Og. I lωality. MoistuTe. MoistuTe. 1 (4y.1) 3 1(%3.8) 8 1(4%.7) 0 d 。 3.41 14.01 1.48 12.70 3 3.07 13.90 1.14 12.80 4 2.67 13.71 1.25 13.95 5 2.21 13.80 1.36 12.95 自 1.15 13.77 1.25 13.10 7 1.70 14.11 1.25 13.10 8 1.93 13.29 1.25 11.75 9 1.82 13.81 1.14 13.5 10 1.48 13.45 1.32 12.40 11 1.82 13.71 1.14 12.20 12 1.14 14.05 1.25 12.90 13 1.48 13.89 1.25 13.10 14 1.59 13.59 1.36 12.65 ‘・15 1.14 13.91 1.36 13.10 16 一 1.14 12.60 A白To.ble1 inc1ico.te司， the rice grown near the bay conto.ins iodine more tho.n three timeFl of thO!le harvestea fo.rther a.wny whel'e t，he influence of 開ルwateris hardly felt. 011 tbe other hand， not mucb aifference iR fonna among tbe whent 咽 mpleRexcepもt，beOl1e came from loco.lity No. 1 wbich iR a.cljneent to t，he bay. Nexもtbe(listribution of iodiue in wbole rice was inveRtigated by taking 10 g. of whole rice nnd the bran 1'0 t，hat the iodine contentR in the poliRbed rice could be e白timatedby tbe di貸erence. The resul旬 arepresented in TlI.ble 2. Inflnence of 8ea.water on the Iodine Conten納 ofRice， Rice-bran and Wheat. 105 Table 2. Whole rice. Poli日h刷irice. NI). of 1∞ality. Iodine in 10 g. Corre目wphonldei-nrigceも.010g. Iodine in 10 g. 1 (4y.1) 3 (1.y8) 3 2 3.41 2.04 1.37 As shown in Table 2， a1町geporもionof iodine in the whole rice is found in the bran which amounts旬 more出阻65per cent of the total iodine. Discu闘ions.It is well known that the lack of iodine in the human boby is one of the important factors to produce goiぬr，and the safest蹴 well制 mosteconomical 日ourceof supply of the proper amount of iodineもomaint.ain our norma.l hea.lth is through our dailey food. In turn， the iodine conten旬 inour food va.ry by the localities where the food is produced since the iodine contents in thfl目oil自governthe amount of iodine a目白hownby various inve自tiga初回. FEu.ENBEIω5)， SnOllE and AND阻 ws6)，MCOLENDON7) and others investigated the dist.ribution of goiter and that of iodine， and reported that the number of goiter patients is in inverse ratio of the iodine contents of soil自 ina l'espective district. Recently TAKAMORI and his co・work，自問found出esa.me condition in Manchuria. where the goiter is pr白valentin a certain pro吋nce.In this vicinity， the case of goi句ri自由co.rc自lyfound but this investigation Wa.S undertaken to fi.nd the influence of自ea.wateron the iodine contents of rice and whea.t and al同 t，hedistribution of iodine in the rice which is the chief diet of the Japanese p伺 ple.Summary. In this investigation， the influence of Seo.-water on the iodine conten旬 inthe whole rice， rice-bran and wheat grown along the irrigation canal which runs from the To.kah嗣biriver into Kojima Bay in tbis prefecl.ure wo.s investigated and the re日ul旬aresummarized o.s follow自:1.) The rice grown ne!l.r tbe bay contained iodine more than three times of those some harvested farther away. 2.) The iodine contents of rice were found to be in paro.l1el with those found in th白冊ils.3.) Mor自 tha.n65 per cent of iodine in the whole rice was found in the rice-bran which is an important fo.ctor considering it from the standpoint of iodine diet. 106 A.ITANo， Y.TSt:JI， '1'.HASEGAWA and T. !¥JORIYA: 4.) The whea.t on a.n a.verage conta.ined less iodine tha.nもh白rice.5.) With the wheat not much difference w拙 fonnda.mong the sa.mples except No.l which conta.ined more iodine tha.n the rest coming from the adja.cent pla.ce to the ba.y. Literature. 1.) ITANo， A.and A. j¥rA四回RA，Berichもed. Ohara Inst. e飢， V: 171-176， 1931. 2.) lTANo， A.anrl Y.宝町JI，Ibid. VII: 103-114， 1935. 3.) ITANo， A.， Ibid. VI: 53-58， 1933. 4.) ITANo， A.， Y. TsuJI， T.HASEGAWA and T. MORIYA， A New l¥Iicro-a.nalyticnl !lfeもhorlfor Iocline. (In print.) 5.) FEU.ENBERG， von T.， and R. L. ANDREWS， Bi∞hem. Z.， 160: 210， 1925. 6.) BHORE， R. A.， Bnlletin自 Dep'tof Sci. ancl ln<l. Research and Dep't Health， New Zealand， 1929 and ]934. 7.) MCCLENDON， T.F.， Miinchener MerlizinIFl(1hen W∞hcnsch.， 25: 1∞2， 1936. 

Influence of Sea-water on the Iodine Contents of Rice，Rice-bran and Wheat.

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