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Organic Olive Oil Farming & The Farm Experience · Organic Olive Oil Farming & The Farm Experience...
Transcript of Organic Olive Oil Farming & The Farm Experience · Organic Olive Oil Farming & The Farm Experience...
![Page 1: Organic Olive Oil Farming & The Farm Experience · Organic Olive Oil Farming & The Farm Experience Michael O’Brien Paso Gold oliveoilfarmer.com October 28, 2014. 9.1 acre farm.](https://reader030.fdocuments.net/reader030/viewer/2022041113/5f1ec359d1f44d23483cb07d/html5/thumbnails/1.jpg)
Organic Olive Oil Farming & The Farm Experience
Michael O’Brien Paso Gold
oliveoilfarmer.com
October 28, 2014
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9.1 acre farm. 3 varieties of olives. Koroneiki olives on terrace.
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Arbequina olives on a windy evening with house
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Winter can be beautiful, but our farm suffered extensive freeze damage
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Many animals find refuge in orchard farm: quail, rabbits, deer, and this hummingbird nest
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Even the tarantula have a home at the farm – same family every year. We just don’t let them in.
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Owl box orientation is very important. Baby barn owls. Owls nest in December.
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Fall personal harvest
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Newly planted arbosana. 4 foot spacing and veggie boxes under construction.
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Newly planted arbequina. 5x10 SHD spacing. 7 days after this photo, temperature plummeted to 15 degrees Fahrenheit. Lost 100 trees.
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New arbequina are now 30 months old. In background, 2 bedroom 2 bath guest house.
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Our olive trees are automatically watered by drip irrigation for water conservation
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We run pumps at night to conserve electricity and gravity feed orchards by day
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New drip irrigation on terrace being tested
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Olive tree laden with a very heavy crop
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Hand-harvesting workers
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My arbosana olive, hand-harvested and milled within 8 hours
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Fruit, machine harvested and fermenting on loading dock
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Employee of the month
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Early green harvest
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Olive-washing section of milling process
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Oil Yield Factors• The amount of oil that a producer gets from a given amount of
fruit depends on many factors: • Oil content of the fruit – varies by year, amount of fruit on the tree,
and variety • Extractability of the oil from the fruit – varies by year, water content,
fruit maturity, and variety • Extraction process – varies by paste fineness; malaxation time and
temperature; decanter efficiency, and/or the amount of time and pressure used on the press cake
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Yield of Olives Per Acre• Yields per acre can range from less than one to as high as 9
tons per acre (2-20 metric tons per hectare) • A good consistent yield from year to year would be about 4
tons per acre (9 metric tons per hectare) • Low yields usually can be related back to a lack of shoot
growth the previous year from poor tree vigor
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Causes of Low Yield• Low yield can be caused by inadequate irrigation or dry
farming, poor weed control, disease, very low fertility, or inappropriate pruning • Low yields can also be caused by poor weather conditions
during bloom, lack of chilling, frost damage, or inadequate flower pollination • Olives are strongly alternate bearing, so a low crop yield one
year will likely promote more shoot growth, resulting in more flowers and higher yields the following year
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Olive oil straight from centrifuge
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From the mill, olive oil arrives at farm bottling room
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Modern Method of Olive Oil Extraction• Industrial decanter separates all the phases (oil, vegetation
water, pomace) by centrifugation • Step 1: Olives are crushed to a fine paste by hammer crusher, disc
crusher, depitting machine, or knife crusher • Step 2: Paste is malaxed for 30-60 minutes in order to allow the small
olive droplets to agglomerate • Aromas are created in these two steps through the action of fruit
enzymes
• Afterwards, the paste is pumped into an industrial decanter where the phases are separated • Water is added to facilitate the extraction process with the paste
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Modern Method of Olive Oil Extraction, con’t
• The decanter is a large capacity horizontal centrifuge rotating at approximately 3,000 rpm • The high centrifugal force allows the phases to be readily
separated according to their different densities (solids > vegetation water > oil) • Inside the decanter’s rotating conical drum there is a coil that
rotates more slowly, pushing the solid materials out of the system
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Diagram of a Working Decanter• The 3 phases (pomace, oil, vegetation water) are separated
according to their densities
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Modern Method of Olive Oil Extraction, con’t
• The separated oil and vegetation water are then rerun through a vertical centrifuge, working around 6,000 rpm, that will separate the small quantity of vegetation water still contained in oil and vice versa
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Oleocanthanal• Anti-inflammatory and antioxidant properties in vitro • Similar to classical NSAIDs, it is a non-selective inhibitor of
cyclooxygenase (COX) • Taking 50g (>3.5 tsp) of typical extra virgin olive oil per day has
similar anti-inflammatory effect as 1/10 of adult dose of ibuprofen • Long-term consumption of small quantities of oleocanthanol
from olive oil may be responsible in part for the low incidence of heart disease and Alzheimer’s disease associated with a Mediterranean diet
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Sources of Polyphenol Antioxidants• Main source is dietary, from consuming a wide variety of foods
• Honey, bee pollen • Most legumes • Fruit: apples, blackberries, blueberries, cantaloupe, pomegranate,
cherries, cranberries, grapes, pears, plums, raspberries, aronia berries, strawberries • Vegetables: broccoli, cabbage, celery, onion, parsley • Red wine • Chocolate • Black tea, white tea, green tea • Oils: olive oil, argan oil • Many grains
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Actual farmer at a farmers market is rare and only in the certified section. Only required at Ferry Building in San Francisco on Saturdays.
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Olive oil makes great soap. Bathe like the Romans. Know your soap maker!
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Employee of next month
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We are diversifying to San Marzano tomatoes and Persian cucumbers tasted earlier. Projected new farm will have these as a main crop.
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Questions?