This invention relates to stable non-aqueous formulations which are suspensions of proteinaceous substances or nucleic acids in non-aqueous, anhydrous, aprotic, hydrophobic, non-polar vehicles with low reactivity. Patients with MM have a median survival of only three years. The material used to form the mitt has a soft fibrous external outside and is secured on to the brush with a fastener. A gate insulator is formed opposing the channel region. to obtain high-viscous culture broth with a concentration of 20-30 gL; removing microorganism from the high-viscous culture broth thus obtained by adjusting pH to 2-4 or 7-9 and centrifuging at 3,000-9,000 rpm for 10-50 minutes; and, obtaining -polyglutamic acid by concentrating the culture broth employing filter and precipitating -polyglutamic acid by addition of alcohol. exposure difference and \u03b5-1 represents predetermined criteria.