„ % ’ % „ Long-Term Apple Storage Remains Core Research UNIVERSITY PARK, (Centre Co.) Researchers in Penn State’s College of Agricultural Sciences have established guide lines for long-term storage of apples that could allow Pennsylva nia food processing firms to take a bigger bite of the product pie by responding more quickly to con sumer desires. According to George Greene, associate professor of pomology at Penn State’s Fruit Research and Extension Center in Biglerville, better understanding of how differ ent varieties of apples hold up in storage can save thousands of dol- Farmers ■ Oswalt® Polygon Mlxors The new “1000” Series design, with its superior horizontal drum and waterfall mixing action, maximizes your TMR results with an outstanding quality of mix The Feedroom & Mixer Exo < See These Dealers For Details Now... BRBftHBNRT EQUIPMENT INC. Naw Barllnvllla, PA 19S4S 215-367-2169 LAPP'S BARN EQUIPMENT SALES * SERVICE Gap, PA 17527 717-442-8134 SOIXENBBRGER SILOS CORP. Chamberaburg, PA 17201 717-264-0588 * - * -n 1 » lars in fruit losses per year for processors. In addition, long-term storage allows firms to keep ade quate supplies of fruit on hand to respond to the demands of the mar ketplace. Controlled atmosphere (CA) storage extends the shelf life pf fruit in two ways. First, lower tem peratures (approximately 32 degrees Fahrenheit) retard ripen ing and reduce water loss. Second, lowering oxygen levels and raising the level of carbon dioxide in stor age rooms enables fruit to be stored for up to 12 months. “Before controlled atmosphere Know Oswalt... ■ Oswalt® TMR Roughage Masters These rugged four-auger mixers can process and mix your ration—including dry baled hay—into a fully blended TMR... —better than anyone! And they’re known for their tougher design, greater value, and an unequalled quality of mix. HARRT TROOP Cochranvilla, PA 19335 215-593-6731 STAR SILOS Myaratown, PA 17067 717-866-5708 JAMBS L. 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Frederick, MD 21701 301-663-6552 NEW JERSEY GEORGE COLEMAN Elmer, NJ 08318 609-358-8528 The researchers at the fruit lab have done extensive work with the main apple varieties used in fruit processing: York Imperial and Golden Delicious. Greene adds that the lab also tests a wide variety of apples marketed to grocery stores, such as Red Delicious and Rome. “As new apple varieties for fresh eating or for processing are devel oped, we test them to find what con ditions are best for long-term stor age,” he said. “Now we’re working on two new varieties of fresh mar ket apples: Fuji and Braebum.” Although Penn State does £s| - Smoother finish stays cleaner s i - More durable than paint S 18f ' resistant 9 19 • Stainless steel nose pan a IS • improved brass valve assembly a 19 • Softer washer for better seal IS) • Lighter spring for less required pressure [S\J • Approx. 1.3 gpm at 40 psi gf I • Plastic plug and smaller water chamber for a jg frost protection 9 9 • Yt ’ top and bottom water inlets 9 a • Screen on valve for water filtration JS Si PAUL ,B. ZIMMERMAN, INC. g 1 295 Woodeorner Rd., Ulllz, PA 17543 0 PH: 717-738-7365 I 9?ißaacranfl extensive research on fresh market apple storage, Greene explains that Pennsylvania’s fresh market apple industry is less concerned with long-term storage than other state’s apple growers because many packers are finished by April or May. In addition, Pennsylvania producers do not ship fruit long distances as do producers in Wash ington, for example. Although controlled atmos phere storage has been used since the 19605, Penn State’s research indicates that growers and packing plants can still improve how they store their fruit before shipping or processing. For instance, different varieties of apple may require separate atmospheric values for best results. Typically, fruit packers have two large controlled atmosphere stor age rooms. Greene points out that dividing larger rooms into smaller areas where each variety of fruit can be given the optimum atmos pheric mix of gas and temperature will result in higher quality fruit and less post-harvest loss due to spoilage. “Another advantage of dividing storage rooms is that it would make it possible to get apples into CA storage that much quicker,” Greene said. “If growers are pick ing 1,000 bushels a day and storing them in 10,000-bushel rooms, it would take only 10 days to start CA storage. If you have a 30,000- bushel room, it will be a month before you can start CA storage.” rwn. i.
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