Zep Inc.’s revenues for the first fiscal quarter ended November 30, 2010 rose 24% to $157.4 million, compared with $126.8 million in the same period of the prior year. Zep said its first quarter fiscal 2011 sales performance benefited from $37 million of acquisition-related revenue. Organic growth through sales to customers in the automotive and food end markets was more than offset by volume declines in the company’s other end markets, the company said. For example, sales to customers access...