<ASTA GROUP INC> UNIT IN LOAN PURCHASE Asta Group Inc said its 50 pct owned Liberty Service Corp affiliate has purchased about 50 mln dlrs face value of credit card installment receivables from a major financial institution it did not name for a significant discount from face value. It said the portfolio consists mostly of charged off loans. The company also said it expects to realize a profit of about 300,000 dlrs on its 25 pct interest in the Briarcliff Manor condominium project in New York, with about 140,000 dlrs of the profit being reflected in the year ending September 30.